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All articles tagged: Neuroscience

Medical xPress 06 September at 01.08 PM

Noninvasive focused ultrasound show potential for combating chronic pain

Chronic pain impacts an estimated 20% of the world population and persists as a frustrating symptom for innumerable health issues, from sickle-cell disease to arthritis.

Medical xPress 06 September at 12.36 PM

Study uncovers critical biomarker differences, advocates for more inclusive Alzheimer's diagnostics

The Emory Goizueta Brain Health Institute (GBHI) has prioritized involving African American volunteers in its research, working to create more inclusive tools for diagnosing Alzheimer's disease and related disorders. Today, about half of the Institute's new volunteers are African American.

Medical xPress 06 September at 12.24 PM

Research team successfully maps the brain-spinal cord connection in humans

The brain and spinal cord are the central pillars of the human central nervous system (CNS), orchestrating everything from movement to sensation. Despite significant advances in neuroscience, our understanding of how these two crucial components of the CNS interact remains limited.

Medical xPress 06 September at 12.00 AM

Excessive light pollution may increase risk of Alzheimer's, especially in younger people

In some places around the globe, the lights never go off. Streetlights, roadway lighting, and illuminated signs can deter crime, make roads safer, and enhance landscaping. Undisrupted light, however, comes with ecological, behavioral, and health consequences.

Medical xPress 05 September at 05.03 PM

Researchers develop rapid test to detect dopamine

Dopamine, a neurotransmitter in our brains, not only regulates our emotions but also serves as a biomarker for the screening of certain cancers and other neurological conditions.

Medical xPress 05 September at 03.49 PM

AI-driven tool could improve brain pressure monitoring in intensive care patients

Researchers at the Icahn School of Medicine at Mount Sinai have developed a noninvasive technique that could dramatically improve the way doctors monitor intracranial hypertension, a condition where increased pressure in the brain can lead to severe outcomes like strokes and hemorrhages.

Medical xPress 05 September at 03.34 PM

New study reveals the signals in your brain that initiate spontaneous actions

A new study published in Nature Communications examines how the brain initiates spontaneous actions. In addition to demonstrating how spontaneous action emerges without environmental input, this research has implications for the origins of slow ramping of neural activity before movement onset—a commonly-observed but poorly understood phenomenon.

Medical xPress 05 September at 03.27 PM

Anesthesia study unlocks clues about the nature of consciousness

For decades, one of the most fundamental and vexing questions in neuroscience has been: What is the physical basis of consciousness in the brain? Most researchers favor classical models, based on classical physics, while a minority have argued that consciousness must be quantum in nature, and that its brain basis is a collective quantum vibration of "microtubule" proteins inside neurons.

Medical xPress 05 September at 02.46 PM

Mouse study reveals new central action target of weight loss drug GLP-1R agonists

A research group led by Prof. Zhu Yingjie from the Shenzhen Institute of Advanced Technology (SIAT) of the Chinese Academy of Sciences has revealed the essential role of lateral septum (LS) neurons in mediating anorectic and weight-lowering effects of the anti-obesity drug, liraglutide, in mice. The study was published in Journal of Clinical Investigation.

Medical xPress 05 September at 01.49 PM

Robots help guide self-managed rehabilitation for stroke and brain injury survivors

Robotic 'coaches' aiding upper limb rehabilitation for stroke and brain injury survivors have been successfully trialed in Vienna, Austria. This international pilot study was led by researchers from Heriot-Watt University's National Robotarium.

Medical xPress 05 September at 11.22 AM

Nature vs. nurture: Depression amplified in difficult environments for youth with a larger left hippocampus, study finds

While the mental health crisis has touched the lives of young people across a broad age spectrum, new Northwestern University research has found that the presence of difficult social environments and the absence of positive social environments predicted greater increases in depressive symptoms in youth, aged 9–11, over a two-year period.

Medical xPress 05 September at 11.03 AM

Discovery sheds light on a key step in nervous system control over gut motility

Wu Tsai Neurosciences Institute researchers have uncovered a previously unknown pattern of intestinal contractions in developing mouse embryos. The new findings shed light on the earliest development of the nervous system that controls our digestive tract and could have implications for understanding and treating gastrointestinal (GI) disorders in premature infants.

Medical xPress 05 September at 09.42 AM

Researchers discover new insights into the neurobiological origins of ataxia

A new study by the University of Turku and Turku University Hospital in Finland investigated the origin of ataxia in the brain of patients with stroke. A significant number of the stroke lesions in the patients were located outside the cerebellum. The study is published in the journal Neurology.

Medical xPress 05 September at 09.20 AM

Study looks at hearing, balance in adolescent Meniere disease

Adolescent Meniere disease (MD) has a higher pure-tone average threshold, lower speech discrimination score, and lower otoacoustic emission pass rates than recurrent vertigo of childhood (RVC), according to a study published in the August issue of Laryngoscope: Investigative Otolaryngology.

Medical xPress 04 September at 04.47 PM

Microglial responses to hypernatremia: New insights into brain health

Microglia are the brain's immune cells known to play a vital role in maintaining neural function and responding to potential threats. However, when the brain is subjected to hyperosmotic stress—a condition characterized by elevated extracellular sodium levels, the microglial response can become exaggerated, leading to potentially harmful effects. Understanding the mechanisms behind this heightened

Medical xPress 04 September at 03.22 PM

Anesthesia overrides carbon dioxide in regulating cerebrospinal fluid flow, finds study

A recent study on the effects of commonly used anesthetic and sedative drugs on cerebrospinal fluid flow and volume has uncovered significant findings regarding their impact on the brain's vital glymphatic system. These findings may affect neuroanesthesia practices.

Medical xPress 04 September at 11.00 AM

Engineered immune cell therapy protects damaged neurons, mouse study shows

Severe injuries to the spinal cord damage nerve cells, disrupt communication with the brain and rest of the body, and lead to lasting disabilities for millions of people worldwide. The injury itself accounts for only a fraction of the overall damage inflicted on the spinal cord, tissue that runs from the brain stem to the lower back. Most of the damage is due to subsequent degenerative processes a

Medical xPress 04 September at 10.45 AM

Neurological symptoms are common—and similar—in severely ill children with different conditions, finds study

In low and middle-income countries (LMICs), severely ill children often present neurological manifestations prior to death, which are linked to a variety of diseases that can be treated. Lumbar punctures, which can help to identify the causes of these neurological symptoms and prevent deaths, are seldom used. These are the main conclusions of a study led by the Barcelona Institute for Global Healt

Medical xPress 04 September at 08.31 AM

Flexible tentacle electrodes precisely record brain activity

Neurostimulators, also known as brain pacemakers, send electrical impulses to specific areas of the brain via special electrodes. It is estimated that some 200,000 people worldwide are now benefiting from this technology, including those who suffer from Parkinson's disease or from pathological muscle spasms.

Medical xPress 04 September at 08.28 AM

Optimizing electrical stimulation therapies with machine learning

Like a pacemaker for the heart, nerve stimulation devices are implanted to send pulses of electricity to evoke activity in nerves throughout the body. These electrical stimulation devices have been used to treat and control many disorders, including heart disease, epilepsy, depression, and rheumatoid arthritis.

Medical xPress 04 September at 01.00 AM

Impact of concussion while playing sports is different in those who don't play professionally, study suggests

Sports-related concussions (SRC) may not be associated with long-term cognitive risks for non-professional athletes, a study led by a UNSW medical researcher suggests. In fact, study participants who had experienced an SRC had better cognitive performance in some areas than those who had never suffered a concussion, pointing to potential protective effects of sports participation.

Medical xPress 03 September at 04.41 PM

Decoding the aging brain: Changes in gene activity detected in different cell types

Aging is a complex biological process that also takes place in the brain. Researchers have discovered that the gene activity changes in different cell types in the brain. A certain type of neuron is particularly affected. In the long term, the findings could provide starting points for slowing down the aging process and delaying neurodegenerative diseases such as Alzheimer's-type dementia.

Medical xPress 03 September at 03.09 PM

Scientists publish protocol for combining aerobic exercise and cognitive rehabilitation in multiple sclerosis

Researchers at Kessler Foundation have published a new clinical protocol examining the combination of aerobic exercise and cognitive rehabilitation to improve learning and memory in individuals with multiple sclerosis (MS) who have mobility disability.

Medical xPress 02 September at 12.00 PM

Study reveals how neighboring synapses coordinate their response to plasticity signals

Researchers from Bonn and Japan have clarified how neighboring synapses coordinate their response to plasticity signals: Nerve cells in the brain receive thousands of synaptic signals via their "antenna," the so-called dendritic branch. Permanent changes in synaptic strength correlate with changes in the size of dendritic spines. However, it was previously unclear how the neurons implement these c

Medical xPress 01 September at 08.40 AM

How hunger influences aversive learning in fruit flies

Internal states that animals experience while they are thirsty, hungry, sleepy or aggressive have been found to be linked with the combined activity of various neuromodulators and neurotransmitters. These chemical messengers can drastically change the excitability and functional connectivity of neurons, which in turn plays a role in shaping the animals' behavior.

Medical xPress 30 August at 01.56 PM

Not just a 'bad guy': Researchers discover neuroprotective function of Tau protein

A study by researchers at Baylor College of Medicine and the Jan and Dan Duncan Neurological Research Institute (Duncan NRI) at Texas Children's Hospital, reveals that the protein Tau—a key player implicated in several neurodegenerative conditions including Alzheimer's disease—also plays a positive role in the brain. Tau mitigates neuronal damage caused by excessive reactive oxygen species (ROS) o

Medical xPress 30 August at 07.50 AM

Neuron populations in the medial prefrontal cortex shown to code the learning of avoidant behaviors

Over the course of their lives, animals form associations between sensory stimuli and predicted threats or rewards. These associations can, in turn, shape the behaviors of animals, prompting them to engage in avoidant behaviors (e.g., avoiding specific stimuli and situations) or conversely, to engage with their surroundings in various ways.

Medical xPress 29 August at 03.53 PM

Case study showcases effectiveness of multimodality approaches for diagnosing hydrocephalus

A recent case report published in Cyborg Bionic Systems details the diagnosis of idiopathic normal pressure hydrocephalus (iNPH) using multimodality diagnostic approaches, highlighting significant advancements in medical diagnostics and patient care. The study conducted by a team of researchers from Tianjin Medical University General Hospital, Tianjin, China, presents a comprehensive case study of

Medical xPress 29 August at 03.17 PM

Insights on brain-spinal communication in opioid withdrawal lead to a clinical trial

A deeper understanding of the communication inside the body when someone is going through opioid withdrawal has led to a new clinical trial at the University of Calgary.

Medical xPress 29 August at 02.00 PM

Mechanisms of how morphine relieves pain mapped out

In a study published in Science, researchers at Karolinska Institutet describe the neural processes behind how morphine relieves pain. This is valuable knowledge because the drug has such serious side effects.

Medical xPress 29 August at 10.20 AM

Brain study suggests regions that grew the most during evolution are most susceptible to aging

An international team of neuroscientists and anthropologists has found that the parts of the brain that grew the most during human evolution are the parts that are now the most susceptible to aging.

Medical xPress 28 August at 04.20 PM

Study finds inflammatory markers elevated in cluster headache patients

When analyzing inflammatory markers in blood and cerebrospinal fluid, researchers at Karolinska Institutet found signs of inflammation in tissue from patients with cluster headache, specifically in the samples from the nervous system. The study was recently published in The Journal of Headache and Pain.

Medical xPress 28 August at 11.00 AM

Prioritizing the unexpected: New brain mechanism uncovered

Researchers have discovered how two brain areas, the neocortex and the thalamus, work together to detect discrepancies between what animals expect from their environment and actual events. These prediction errors are implemented by selective boosting of unexpected sensory information. These findings enhance our understanding of predictive processing in the brain and could offer insights into how b

Medical xPress 28 August at 10.27 AM

Researchers develop new implant to power healing after spinal cord injury

A research team at RCSI University of Medicine and Health Sciences has developed a new implant that conveys electrical signals and may have the potential to encourage nerve cell (neuron) repair after spinal cord injury.

Medical xPress 28 August at 10.11 AM

How humble cells in a little-known organ manage brain inflammation

Deep in the brain, sheets of tissue known as the choroid plexus produce cerebrospinal fluid (CSF) and act as a protective barrier between the brain and CSF. But the lab of Maria Lehtinen, Ph.D., at Boston Children's Hospital has shown that the little-known choroid plexus does much more. For example, it secretes factors that promote the health of the brain and CSF and influence the brain as it deve

Medical xPress 27 August at 04.01 PM

Novel algorithm improves intracranial EEG accuracy to enhance future patient care

Published in the Journal of Neural Engineering, a research team led by the University of Minnesota Medical School has evaluated the reliability of human experts in comparison to an automated algorithm in assessing the quality of intracranial electroencephalography (iEEG) data. This research hopes to pave the way for more accurate and efficient seizure detection and localization, ultimately improvi

Medical xPress 27 August at 12.44 PM

Finding epilepsy hotspots before surgery: A faster, non-invasive approach

Neurosurgery for patients with drug-resistant epilepsy requires locating the precise brain areas that are generating the seizures. Typically, patients undergo seven to 10 days of invasive intracranial EEG monitoring, with electrodes surgically implanted inside the brain through one or more skull openings to capture seizure activity as it happens.

Medical xPress 27 August at 11.44 AM

Tuning into transitions: How our brains cross musical boundaries

What happens in the brain when one musical phrase ends and another begins? The answer lies in musical boundaries—the invisible lines shaping our listening experience.

Medical xPress 27 August at 07.25 AM

Risk for dementia found to be similar with SGLT2 inhibitors, dulaglutide in type 2 diabetes

For older adults with type 2 diabetes, the risk for dementia seems similar with sodium-glucose cotransporter 2 (SGLT2) inhibitors and the glucagon-like peptide 1 receptor agonist (GLP-1 RA) dulaglutide, according to a study published online Aug. 27 in the Annals of Internal Medicine.

Medical xPress 26 August at 12.43 PM

Piecing the puzzle together: How different brain regions contribute to visual object memory

Visual object memory refers to our brain's ability to store, recognize, and recall visual information about objects we perceive. This capability is essential for interacting with the world, influencing learning, problem-solving, navigation, and social interactions. Without effective visual object memory, these activities would be nearly impossible. Consequently, many neuroscientists have been maki

Medical xPress 26 August at 11.13 AM

Brain shows changes in regions associated with anxiety after quitting alcohol, finds study

Certain regions of the brain show changes during the early stages after quitting drinking that may contribute to increased anxiety and relapse rates in people attempting recovery from alcohol use disorder, according to a study published in Alcohol: Clinical and Experimental Research.

Medical xPress 26 August at 10.52 AM

The orchid and dandelion phenomenon in brain aging: Personalizing cognitive health approaches for older adults

As the global population ages, understanding the variability in cognitive aging becomes increasingly important. Why do some individuals remain cognitively sharp while others experience significant decline?

Medical xPress 26 August at 10.27 AM

Research reveals environmental and disease factors can speed up the brain's biological age

The pace at which the brain ages can vary significantly among individuals, leading to a gap between the estimated biological age of the brain and the chronological age (the actual number of years a person has lived).

Medical xPress 26 August at 10.25 AM

Mechanisms of postoperative pain reveal a path for localized and targeted therapy

An international research group led by MedUni Vienna and IMBA—Institute of Molecular Biotechnology, Vienna, has made significant progress in understanding the mechanisms that influence the sensation of pain after surgery.

Medical xPress 26 August at 10.20 AM

Scientists uncover the role of dopamine in mediating short-term and long-term memory dynamics

In a recent study published in Nature, researchers from Stanford University and Yale University have explored the interplay between short-term and long-term memory in animals.

Medical xPress 26 August at 10.13 AM

Scientists find neurons that process language on different timescales

Using functional magnetic resonance imaging (fMRI), neuroscientists have identified several regions of the brain that are responsible for processing language.

Medical xPress 26 August at 07.39 AM

Insurance coverage could impact survival of patients after spinal cord injury

The care of people seriously harmed by spinal cord injury can cost hundreds of thousands of dollars, and a new analysis suggests that ability to pay influences how long a patient remains on life support.

Medical xPress 25 August at 07.30 AM

Self-deployable, biodegradable electrode offers minimally invasive brain signal monitoring

Sensors that can be easily and safely introduced in the brain could have important medical applications and could also contribute to the development of brain-interfacing devices. While significant progress has been made toward the development of these sensors, most existing devices can only be deployed via invasive surgical procedures that can have numerous complications.

Medical xPress 23 August at 01.48 PM

Gut dysbiosis found to impair intestinal renewal and lipid absorption in Scarb2 deficiency-associated neurodegeneration

A study published in the journal Protein & Cell details the connection between SCARB2 deficiency and gastrointestinal dysfunction, revealing that the loss of SCARB2 leads to alterations in bile acid metabolism and dysbiosis in the gut microbiome. This disruption affects the signaling pathway involving FXR, which normally regulates bile acid synthesis and intestinal lipid absorption.

Medical xPress 23 August at 01.36 PM

Multiple sclerosis appears to protect against Alzheimer's disease

People with multiple sclerosis (MS) are far less likely than those without the condition to have the molecular hallmarks of Alzheimer's disease, according to new research from Washington University School of Medicine in St. Louis.

Medical xPress 23 August at 10.30 AM

Study suggests even mild concussions can have lifelong brain impacts

A team of neuroscientists, brain specialists and psychiatrists, led by a group at Cambridge University, in the U.K, has found evidence suggesting that minor brain injuries that occur early in life, may have health impacts later on.

Medical xPress 23 August at 10.28 AM

Scientists uncover new mechanism of 'forgetting' in brain neurons that could inform Parkinson's treatment

Northwestern Medicine investigators have uncovered a new way in which neurons in the brain "forget" associations that help guide behavior and habits, according to a study published in Cell Reports.

Medical xPress 23 August at 09.54 AM

Low-dose carbon monoxide may explain the paradoxical reduced risk of Parkinson's disease among smokers

Paradoxically, previous research has shown that despite its inherent health risks, cigarette smoking is linked with a reduced risk of Parkinson's disease (PD). Until now, however, it was not clear how.

Medical xPress 23 August at 08.30 AM

GnRH neurons in the mouse olfactory bulb shown to translate socially relevant odors into male reproductive behavior

Animal reproduction is supported by the integration of various external and internal processes. These processes include a combination of perceived sensory cues, behaviors and hormone secretion.

Medical xPress 22 August at 04.45 PM

A new screening method for measuring blood-brain barrier permeability

Scientists at Southwest Research Institute have developed a new screening method to identify drug formulations that can penetrate the blood-brain barrier (BBB), to facilitate treatment of brain diseases and conditions.

Medical xPress 22 August at 04.43 PM

Researchers discover brain circuit that controls ability to recall information and memories

Daily, we encounter new people, situations, and things that require our attention. Fortunately, there is an area in the brain that contributes to consciousness and awareness. This area is called the "Claustrum complex" and is located deep within the brain in each hemisphere.

Medical xPress 22 August at 04.42 PM

Autism spectrum disorders linked to neurotransmitter switching in the brain

Autism spectrum disorders (ASD) involve mild to severe impairment of social, behavioral and communication abilities. These disorders can significantly impact performance at school, in employment and in other areas of life. However, researchers lack knowledge about how these disorders emerge at early stages of development.

Medical xPress 22 August at 11.54 AM

Researchers map brain circuits that signal immediate danger and create memories to help avoid threats

An article published in the journal Current Biology describes experiments that mapped a brain circuit responsible for instantly detecting threats and forming memories of fear.

Medical xPress 22 August at 11.00 AM

Thyroid hormone fuels the drive to explore by rewiring brain circuits, new study suggests

Thyroid hormone plays a key role in regulating a range of physiologic functions, including metabolism, temperature, heart rate, and growth. It accomplishes this impressive array of activities by interacting with almost every organ system in the body. Yet despite a long history of research on how thyroid hormone influences different organs, its effects on arguably the most crucial organ—the brain—h

Medical xPress 22 August at 10.36 AM

New study reveals dopamine analog CA140 mitigates Alzheimer's disease pathology

The small molecule dopamine analog (DA) CA140, which binds to Amyloid-β (Aβ), presents new possibilities for the treatment of degenerative brain diseases.

Medical xPress 22 August at 05.00 AM

Macaque study investigates role of interhemispheric pathways in spinal cord injury recovery

Stroke and spinal cord injuries can severely impair motor functions, and understanding how to promote recovery is a critical challenge. While damaged neurons in the brain and spinal cord have limited ability to regenerate, the brain can form or strengthen alternative neural pathways involving uninjured parts of the brain, enabling functional recovery. Such reorganization of pathways in the brain i

Medical xPress 22 August at 05.00 AM

Will EEG be able to read your dreams? The future of the brain activity measure as it marks 100 years

One hundred years after the human brain's electrical activity was first recorded, experts are celebrating the legacy of its discovery and sharing their predictions and priorities for its future.

Medical xPress 21 August at 04.08 PM

Wearable device improves gait ability in spinal and bulbar muscular atrophy patients, study finds

Spinal and bulbar muscular atrophy (SBMA) is a rare X-linked neuromuscular disorder that results from an abnormal expansion of gene sequences in the androgen receptor gene. SBMA has an adult onset and is a slowly progressive disease that usually presents with muscle weakness in the limbs, predominantly in the proximal regions.

Medical xPress 21 August at 04.00 PM

Study finds no link between migraine and Parkinson's disease

Contrary to previous research, a new study of female participants finds no link between migraine and the risk of developing Parkinson's disease. The study is published in the August 21, 2024 online issue of Neurology.

Medical xPress 21 August at 02.00 PM

The role of an energy-producing enzyme in treating Parkinson's disease

An enzyme called PGK1 has an unexpectedly critical role in the production of chemical energy in brain cells, according to a preclinical study led by researchers at Weill Cornell Medicine. The investigators found that boosting its activity may help the brain resist the energy deficits that can lead to Parkinson's disease.

Medical xPress 21 August at 12.59 PM

Discovery of 'item memory' brain cells offers new Alzheimer's treatment target

Researchers from the University of California, Irvine have discovered the neurons responsible for "item memory," deepening our understanding of how the brain stores and retrieves the details of "what" happened and offering a new target for treating Alzheimer's disease.

Medical xPress 21 August at 12.17 PM

Low-dose THC reverses brain aging and enhances cognition in mice, research suggests

Bonn researchers have clarified the influence of treatment with tetrahydrocannabinol on the metabolic switch mTOR: A low-dose long-term administration of cannabis can not only reverse aging processes in the brain, but also has an anti-aging effect.

Medical xPress 21 August at 11.39 AM

Scientists investigate effects of robotic postural stand training combined with spinal cord epidural stimulation

Kessler Foundation researchers have published a new clinical study investigating the effects of robotic postural stand training combined with spinal cord epidural stimulation (Stand-scES) on trunk control in individuals with high-level spinal cord injury (SCI).

Medical xPress 20 August at 05.17 PM

Novel method for treating cerebral ischemic stroke modulates molecular transportation in brain extracellular space

Ischemic stroke is the second leading cause of death globally and the primary cause of death in China. Over the past two decades, Prof. Hongbin Han's team has been committed to advancing diagnosis and treatment of major brain disorders by investigating the brain extracellular space (ECS). Brain ECS occupies 15%–20% of the total brain volume, significantly more than the 3%–5% occupied by cerebral b

Medical xPress 20 August at 04.45 PM

Memory can be strengthened by unrelated experiences, study finds

There is a legend that many hundreds of years ago—long before printing presses, computers, or telephones existed—a special method was used to remember significant events, such as land transfers, crucial agreements, or weddings. According to the legend, a child was chosen to witness the event and immediately thrown into a river. This extreme combination of events was believed to ensure that the chi

Medical xPress 20 August at 03.28 PM

Enhancing brain-computer interface performance through tactile and motor imagery

In a study recently published in the journal Cyborg and Bionic Systems, researchers from Zhejiang University have unveiled significant findings that could enhance brain-computer interface (BCI) technologies, marking a crucial step towards more intuitive neuroprosthetic control and advanced rehabilitation therapies.

Medical xPress 20 August at 03.22 PM

A compound in rosemary extract can reduce cocaine sensitivity

A team of researchers led by the University of California, Irvine has discovered that an antioxidant found in rosemary extract can reduce volitional intakes of cocaine by moderating the brain's reward response, offering a new therapeutic target for treating addiction.

Medical xPress 20 August at 02.49 PM

Aceneuramic acid is the first approved drug for GNE myopathy treatment

In order to treat an underserved population of patients with a rare condition whose muscles gradually become weaker until they can no longer walk, a team of researchers across Japan have completed a clinical study to confirm the safety of long-term administration of a therapeutic drug.

Medical xPress 20 August at 10.30 AM

Babies and animals can't tell us if they have consciousness—but philosophers, scientists are finding answers

Consciousness is a subjective, personal thing, so scientists who study it usually rely on people to tell them what they are conscious of. The problem is that infants are presumably conscious but, without speech, they can't let us know. Animals like dogs, cats, octopuses and maybe insects might also be conscious, but they can't tell us that either.

Medical xPress 20 August at 09.13 AM

Large-scale brain imaging study reveals five patterns of age-related degeneration

Through a large-scale brain imaging study, an international research team has identified five patterns of age-related degeneration in older people experiencing mental decline. In their study, published in the journal Nature Medicine, the team conducted the multi-year study of thousands of MRI scans using machine learning applications to find patterns in brain degeneration as people age.

Medical xPress 16 August at 01.22 PM

Lip reading activates brain regions similar to real speech, researchers show

Lip-read words can be decoded from the brain's auditory regions similarly to heard speech, according to a new University of Michigan report that looked at how vision supports verbal perception.

Medical xPress 16 August at 09.29 AM

New approach enables a closer look at microglial organelles

Microglia are the immune system's front-line enforcers in the brain. They are cells that patrol the brain and destroy anything harmful that they encounter, from invading bacteria to cellular debris. They also remove plaques and prune dysfunctional synapses between neurons.

Medical xPress 15 August at 03.06 PM

New study uncovers how brain cells form precise circuits before experience is able to shape wiring

In humans, the process of learning is driven by different groups of cells in the brain firing together. For instance, when the neurons associated with the process of recognizing a dog begin to fire in a coordinated manner in response to the cells that encode the features of a dog—four legs, fur, a tail, etc.—a young child will eventually be able to identify dogs going forward. But brain wiring beg

Medical xPress 15 August at 03.00 PM

The brain creates parallel copies for a single memory, new study reveals

A new study now published in Science reveals that the memory for a specific experience is stored in multiple parallel "copies." These are preserved for varying durations, modified to certain degrees, and sometimes deleted over time, report researchers at the University of Basel.

Medical xPress 15 August at 02.00 PM

Navigating the future: Brain cells that plan where to go

Researchers from the RIKEN Center for Brain Science (CBS) in Japan have discovered a region of the brain that encodes where an animal is planning to be in the near future. Linked to internal maps of spatial locations and past movements, activity in the newly discovered grid cells accurately predicts future locations as an animal travels around its environment.

Medical xPress 15 August at 02.00 PM

Sleep resets neurons for new memories the next day, study finds

While everyone knows that a good night's sleep restores energy, a new Cornell University study finds it resets another vital function: memory.

Medical xPress 15 August at 10.29 AM

'Silent' neurons in the sensory cortex can be recruited to enhance sensory processing

The somatosensory cortex is a region of the mammalian brain known to play a crucial role in the processing of sensory information, including tactile sensations, temperature and pain. While this brain region has been the focus of numerous neuroscience studies, its unique contributions to perception-related decision-making remain poorly understood.

Medical xPress 15 August at 05.00 AM

Cleaning up the aging brain: Scientists restore brain's waste removal system

Alzheimer's, Parkinson's, and other neurological disorders can be seen as "dirty brain" diseases, where the brain struggles to clear out harmful waste. Aging is a key risk factor because, as we grow older, our brain's ability to remove toxic buildup slows down. However, new research in mice demonstrates that it's possible to reverse age-related effects and restore the brain's waste-clearing proces

Medical xPress 14 August at 05.00 PM

International study detects consciousness in unresponsive patients with severe brain injury

New research co-led by experts at Mass General Brigham found that brain scans can detect consciousness in some patients with brain injury who are unresponsive.

Medical xPress 14 August at 05.00 PM

New brain-computer interface allows man with ALS to 'speak' again

A new brain-computer interface (BCI) developed at UC Davis Health translates brain signals into speech with up to 97% accuracy—the most accurate system of its kind.

Medical xPress 14 August at 03.55 PM

New insights into brain's reward circuitry could aid addiction treatment

A research team—co-led by Penn Nursing—has made a significant breakthrough in understanding the complex neural circuitry underlying reward and addiction by identifying 34 distinct subtypes of medium spiny neurons (MSNs) in the nucleus accumbens (NAc), a key brain region involved in pleasure and motivation. The findings, published in the journal Scientific Reports, offer insights into the diversity

Medical xPress 14 August at 03.25 PM

New open-source tool helps to detangle the brain

In late 2023, the first drug with potential to slow the progression of Alzheimer's disease was approved by the U.S. Federal Drug Administration. Alzheimer's is one of many debilitating neurological disorders that together affect one-eighth of the world's population, and while the new drug is a step in the right direction, there is still a long journey ahead to fully understanding it, and other suc

Medical xPress 14 August at 02.00 PM

Researchers discover 'switch' for the desire to engage in physical activity

Exercising is healthy, but not always appealing. Research led by Guadalupe Sabio from the National Cancer Research Center (CNIO) may have found a "switch" that activates the desire to get moving, as it shows that during exercise the muscle activates proteins which encourage further activity. The paper is published in Science Advances.

Medical xPress 14 August at 01.35 PM

Promising new screening tool may help manage neurobehavioral difficulties in children with Duchenne muscular dystrophy

A pilot study using a new screening tool shows promise for assessing neurobehavioral difficulties in children with Duchenne muscular dystrophy (DMD) and improving quality of life for patients and their families. Results appear in the Journal of Neuromuscular Diseases.

Medical xPress 14 August at 11.54 AM

Scientists target amyloid beta molecule in search for preventive treatment strategy for Alzheimer's

In the fight against Alzheimer's, researchers at the Technical University of Munich (TUM) have developed a promising, preventative therapeutic approach. They specifically targeted the amyloid beta biomolecule, which triggers the hyperactivity of nerve cells typical of the brain disease in its early stages.

Medical xPress 14 August at 11.00 AM

Scientists discover method to activate dormant stem cells in the brain

Scientists from Duke-NUS Medical School and the Mechanobiology Institute (MBI) at the National University of Singapore (NUS) have discovered a novel pathway to wake up dormant neural stem cells, offering potential new therapies for neurodevelopmental disorders such as autism, learning disabilities, and cerebral palsy.

Medical xPress 14 August at 11.00 AM

Scientists capture glimpse of how brain cells embody thought

The coordinated activity of brain cells, like birds flying in formation, helps us behave intelligently in new situations, according to a study led by Cedars-Sinai investigators. The work, published in Nature, is the first to illuminate the neurological processes known as abstraction and inference in the human brain.

Medical xPress 13 August at 04.21 PM

Lipid accumulation drives cellular senescence in dopaminergic neurons

A new research perspective titled Lipid accumulation drives cellular senescence in dopaminergic neurons has been published in Aging.

Medical xPress 13 August at 12.30 PM

Study: A new type of degenerative brain disease underlying dementia is very common among the oldest old

A new type of degenerative brain disease, limbic-predominant age-related TDP-43 encephalopathy (LATE), was recognized just a decade or so ago, and remains relatively unknown.

Medical xPress 13 August at 12.25 PM

Natural grass may pose greater risk for football concussions than artificial turf

Young football players who sustained a head-to-ground concussion practicing or playing games on natural grass experienced more symptoms—and significantly higher severity—than those who suffered concussions on artificial turf, researchers at UT Southwestern Medical Center found.

Medical xPress 13 August at 10.50 AM

Study elucidates mechanisms of longer and deeper sleep after an all-nighter

Professor Hiroki R. Ueda , Dr. Kazuhiro Kon and their colleagues at Graduate School of Medicine, The University of Tokyo, have published a study in Nature Communications on the importance of proper regulation of the activity of parvalbumin (PV)-expressing neurons, the major inhibitory neurons in the cerebral cortex, in the long, deep sleep (rebound sleep) that occurs after prolonged wakefulness.

Medical xPress 13 August at 10.20 AM

'Origami-inspired' folding electrodes could reduce surgery needed to treat brain conditions

A research team led by the University of Oxford and the University of Cambridge have created new 'origami-inspired' brain electrodes that can fold up to a fraction of their full size. This advance could significantly reduce the amount of surgery needed to treat conditions such as epilepsy, or to install brain-computer interfaces.

Medical xPress 12 August at 04.29 PM

Brain biomarker in blood sample predicts stroke, researchers demonstrate

Researchers at Uppsala University Hospital and Uppsala University have demonstrated that a simple blood test that reflects brain health can predict which people are most at risk of suffering a stroke. The discovery could contribute to more individualized treatment of patients with atrial fibrillation. The study has been published in the journal Circulation.

Medical xPress 12 August at 01.19 PM

New findings suggest alternative mechanisms behind Alzheimer's disease

New findings out of Emory University are challenging existing theories about the origins of Alzheimer's, the leading cause of dementia in the elderly worldwide. A team led by researchers at the Goizueta Brain Health Institute has found strong evidence supporting a new understanding of the mechanism behind Alzheimer's disease.

Medical xPress 12 August at 01.15 PM

Hooked on a feeling: Opioids evoke positive feelings through a newly identified brain region

Opioids, like the commonly prescribed pain reliever oxycodone, are known for being highly addictive. In 2022, nearly 85,000 people died from an opioid overdose in the U.S., according to the Centers for Disease Control. Yet opioids are still being prescribed at alarming rates, particularly in Southern states, because of the lack of effective alternatives.

Medical xPress 12 August at 12.35 PM

Researchers urge Medicare coverage of driving assessments for at-risk, older adults

In 2020, approximately 48 million licensed drivers were older than 65 years. Within this age group, car crashes led to 7,480 deaths and 149,881 non-fatal injuries. Moreover, 17% of people older than 65 years (approximately 8.2 million) experience mild cognitive impairment and are at increased risk for crashes. Accurate assessment of driving skills in these individuals cannot be done in a doctor's

Medical xPress 12 August at 11.00 AM

How experience shapes neural connectivity in the brain

Our brain interprets visual information by combining what we see with what we already know. A study published in the journal Neuron, by researchers at the Champalimaud Foundation, reveals a mechanism for learning and storing this existing knowledge about the world.

Medical xPress 12 August at 10.52 AM

Biodegradable electronic tent technology offers less invasive brain disease diagnosis

A team from The College of Engineering at Seoul National University has developed a biodegradable electronic tent technology that enables brain disease diagnosis using a needle.

Medical xPress 12 August at 10.20 AM

State-of-the-art brain recordings reveal how neurons resonate

For decades, scientists have focused on how the brain processes information in a hierarchical manner, with different brain areas specialized for different tasks. However, how these areas communicate and integrate information to form a coherent whole has remained a mystery.

Medical xPress 12 August at 07.00 AM

Drug protects against air pollution-related Alzheimer's signs in mice

A study led by the USC Leonard Davis School of Gerontology shows how feeding mice a drug called GSM-15606 provides protection against air pollution-related increases in proteins linked to Alzheimer's disease.

Medical xPress 09 August at 01.46 PM

Memory problems in old age linked to a key enzyme, study in mice finds

Everyone has moments of forgetfulness from time to time, especially as we get older. But older adults don't just have difficulty remembering new information. They also have a harder time modifying those memories when new details emerge. Yet, little is known about the mechanisms behind memory updating and how those mechanisms go awry with age.

Medical xPress 09 August at 01.45 PM

Key factor found in drug-context links, relapse

Most people wouldn't think twice after seeing sugar spilled on a counter. But for someone with a history of cocaine use, this visual cue could trigger powerful associations with their past drug use and a compulsive urge to seek the drug.

Medical xPress 09 August at 08.11 AM

Alzheimer's disease: It's not only neurons—glial cells also produce harmful proteins

Memory loss, confusion, speech problems—Alzheimer's disease is the most common cause of dementia, affecting about 35 million people worldwide, and the number is growing.

Medical xPress 09 August at 08.11 AM

Serotonin changes how people learn and respond to negative information

Increasing serotonin can change how people learn from negative information, as well as improving how they respond to it, according to a new study published in the journal Nature Communications.

Medical xPress 09 August at 07.30 AM

Sequence of the day: Exploring how the mammalian brain represents multiple sequential experiences during sleep

Sleep is among the most fascinating phenomena observed in both humans and animals, known to be characterized by different cycles and types of brain activity. Past neuroscience studies have found that during sleep, groups of neurons in the hippocampus replay past experiences and forecast potential future experiences.

Medical xPress 09 August at 05.43 AM

How does traumatic brain injury progress to Alzheimer's disease?

A traumatic brain injury, or TBI, is caused by a contusion to the head that may result in injury to the brain. This type of injury combined with the inherited genetic risk factors can result in the accelerated development of Alzheimer's disease and related dementia, or ADRD.

Medical xPress 09 August at 05.35 AM

Study shows new, more precise way to deliver medicine to the brain

Houston Methodist researchers have discovered a more accurate and timely way to deliver life-saving drug therapies to the brain, laying the groundwork for more effective treatment of brain tumors and other neurological diseases.

Medical xPress 08 August at 03.02 PM

Study reveals ways in which 40Hz sensory stimulation may preserve brain's 'white matter'

Early-stage trials in Alzheimer's disease patients and studies in mouse models of the disease have suggested positive impacts on pathology and symptoms from exposure to light and sound presented at the gamma band frequency of 40 Hz.

Medical xPress 08 August at 02.58 PM

Eating for necessity or pleasure? There is a brain circuit for that

People eat either because they are hungry or for pleasure, even in the absence of hunger. While hunger-driven eating is fundamental for survival, pleasure-driven feeding may accelerate the onset of obesity and associated metabolic disorders.

Medical xPress 08 August at 12.50 PM

Why elite athletes are harnessing their own brain waves for sporting success

The Olympic and Paralympic Games represent the pinnacle of athletic achievement, where the world's sporting elite showcase their prowess. Modern athletes benefit from top-notch coaching, optimized nutrition and recovery strategies. Yet, some are turning to more unique methods for the competitive edge—training the brain.

Medical xPress 08 August at 07.40 AM

Molecule restores cognition, memory in Alzheimer's disease model mice

In a study, published in the journal The Proceedings of the National Academy of Sciences, a molecule identified and synthesized by UCLA Health researchers was shown to restore cognitive functions in mice with symptoms of Alzheimer's disease by effectively jump-starting the brain's memory circuitry.

Medical xPress 07 August at 01.13 PM

Better understanding cerebral palsy pain types could lead to better treatment

Pain management is an important component of caring for adults with cerebral palsy. However, it's the least understood comorbidity in the adult cerebral palsy population.

Medical xPress 07 August at 12.59 PM

Dream discovery: Melatonin's key role in REM sleep revealed

A significant breakthrough in the understanding of sleep mechanism opens new promise for treating sleep disorders and associated neuropsychiatric conditions: Scientists have pinpointed the melatonin receptor MT1 as a crucial regulator of REM (Rapid Eye Movement) sleep.

Medical xPress 07 August at 12.45 PM

Walking the walk, researchers develop motion compatible brain scanner

An upright neuroimaging device developed by West Virginia University neuroscientists, physicists and engineers that allows patients to move around while undergoing a brain scan could help set priorities for the evolution of imaging tools.

Medical xPress 07 August at 11.47 AM

If you yawn, I yawn too: New mechanisms behind imitative behavior revealed

An international team of researchers, led by scientists from the University of Bologna has investigated the neural mechanisms underlying imitative behavior: a phenomenon that facilitates interaction and social cohesion and allows people to engage spontaneously with others.

Medical xPress 07 August at 11.47 AM

Cocaine discovery could pave way for treatment for substance abuse

You have probably heard of dopamine. The substance also known as the "feel-good hormone."

Medical xPress 07 August at 10.29 AM

Shedding light on alcohol's impact on brain activity in social drinkers

Researchers at Neuroscience Research Australia (NeuRA) and UNSW Science have conducted a study examining the impact of alcohol on the electrical conductivity of the brain, highlighting its sedative effects.

Medical xPress 07 August at 07.15 AM

Skin-to-skin 'kangaroo care' found to boost neurodevelopment in preemies

Skin-to-skin cuddling with a parent has lasting cognitive benefits for premature babies, according to a new Stanford Medicine study. Preemies who received more skin-to-skin contact, also known as kangaroo care, while hospitalized as newborns were less likely to be developmentally delayed at 1 year of age, the study found.

Medical xPress 06 August at 02.00 PM

Dopamine treatment found to alleviate symptoms in Alzheimer's disease

A new way to combat Alzheimer's disease has been discovered by Takaomi Saido and his team at the RIKEN Center for Brain Science (CBS) in Japan. Using a mouse model, the researchers found that treatment with dopamine could alleviate physical symptoms in the brain as well as improve memory.

Medical xPress 06 August at 01.12 PM

What happens to your brain when you drink with friends?

Grab a drink with friends at happy hour and you're likely to feel chatty, friendly and upbeat. But grab a drink alone and you may experience feelings of depression. Researchers think they now know why this happens.

Medical xPress 06 August at 12.00 PM

Why are migraines worse during your period? Study points to progesterone, offering a new treatment target

Migraines are throbbing headaches often accompanied by nausea and increased sensitivity to light, sound and touch. Nearly 30 million Americans suffer from migraines, and almost 1 in 4 of them have at least four severe attacks each month. Three times as many women suffer from migraine headaches as men, and this disparity is even more pronounced during reproductive years.

Medical xPress 06 August at 11.35 AM

Racism and discrimination lead to faster aging through brain network changes, new study finds

Racism steals time from people's lives—possibly because of the space it occupies in the mind. In a new study published in the journal JAMA Network Open, our team showed that the toll of racism on the brain was linked to advanced aging, observed on a cellular level.

Medical xPress 06 August at 11.00 AM

Study links premature development of human neurons to brain developmental disorders

The mechanisms underlying intellectual disabilities or autism remain largely unknown. Researchers in the labs of Prof. Pierre Vanderhaeghen and Prof. Vincent Bonin at the VIB-KU Leuven Center for Brain & Disease Research and NERF have discovered that mutations in a gene called SYNGAP1 disrupt the prolonged development of human neurons, which is thought to be essential for normal cognitive function

Medical xPress 06 August at 10.00 AM

Increased risk of dying during pregnancy for women with epilepsy calls for improved care

Women with epilepsy are four times more likely to die during pregnancy and their babies are 50% more likely to suffer illness or death. These are the findings of a major new study led by Karolinska Institutet and published in JAMA Neurology. The researchers believe that better care of women before, during and after pregnancy can reduce the risks.

Medical xPress 06 August at 05.00 AM

Exercise or snack? How our brain decides

Should I go and exercise, or would I rather go to the café and enjoy a delectable strawberry milkshake? Until now, what exactly happens in our brain when we make this decision has been a mystery to science, but researchers at ETH Zurich have found the solution. They have deciphered which brain chemical and which nerve cells mediate this decision: the messenger substance orexin and the neurons that

Medical xPress 05 August at 02.16 PM

New method tracks how psychedelics affect neurons in minutes

Researchers at the University of California, Davis have developed a rapid, noninvasive tool to track the neurons and biomolecules activated in the brain by psychedelic drugs. The protein-based tool, which is called Ca2+-activated Split-TurboID, or CaST, is described in research published in Nature Methods.

Medical xPress 05 August at 01.40 PM

Neuro/psych diagnoses prevalent in children with medical complexity

Children with medical complexity (CMC) often have neurodevelopmental and mental health diagnoses, which are associated with increased health care utilization, according to a study published online Aug 5 in Pediatrics.

Medical xPress 05 August at 01.30 PM

Vestibular neurectomy effective for Meniere disease

For patients with Meniere disease (MD), vestibular neurectomy is effective, resolving vertigo episodes and resulting in hydrops regression, according to a study published online July 30 in Acta Neurologica Belgica.

Medical xPress 05 August at 10.40 AM

Sleep deprivation in mice found to reduce brain synapse diversity

A multi-disciplinary team has found that depriving lab mice of sleep can lead to a reduction in synapse diversity in the brain. In their study, published on the open-access site Current Biology, the group compared the brains of mice that were allowed normal amounts of sleep with others who were kept awake for an extra six hours.

Medical xPress 05 August at 09.10 AM

Dopamine physiology in the brain unveiled through brain engineering

DGIST Department of Brain Sciences Professor Lee Kwang and his team have discovered a new correlation between neural signaling in the brain and dopamine signaling in the striatum. The human brain requires fast neural signal processing in a short period of less than a second.

Medical xPress 05 August at 09.08 AM

Exploring the impact of meta learning on post-stroke motor recovery

The variability in recovery performance among individuals who have suffered a stroke has puzzled clinicians. A research group from University of Tsukuba has discovered that meta-learning ability enhances motor skill recovery in these patients.

Medical xPress 02 August at 11.00 AM

Brain activity associated with specific words is mirrored between speaker and listener during a conversation, data show

When two people interact, their brain activity becomes synchronized, but it was unclear until now to what extent this "brain-to-brain coupling" is due to linguistic information or other factors, such as body language or tone of voice.

Medical xPress 01 August at 02.00 PM

With new technique, patient-derived neurons accurately model late-onset Alzheimer's disease

Researchers at Washington University School of Medicine in St. Louis have developed a way to capture the effects of aging in the development of Alzheimer's disease. They devised a method to study aged neurons in the lab without a brain biopsy, an advancement that could contribute to a better understanding of the disease and new treatment strategies.

Medical xPress 01 August at 09.10 AM

Researchers determine how the hippocampus generates and sustains oscillations

RIKEN neuroscientists have gained new insights into how the hippocampus generates and sustains oscillations, which will be helpful for informing models on how the brain region works.

Medical xPress 01 August at 09.06 AM

New insights into cellular processes after a stroke

Strokes lead to irreversible damage to the brain and are one of the most common causes of dependency or death. As the cellular reactions to a cerebral infarction are not yet fully understood, there are no current techniques to promote the regeneration of damaged nerve tissue in the brain.

Medical xPress 01 August at 07.25 AM

New insights into fruit fly cell regulation may offer clues for treating brain tumors

Peter Mac researchers have discovered new insights into neural stem cell development in fruit flies that may provide answers on how brain tumors grow in humans.

Medical xPress 31 July at 04.00 PM

Are cardiovascular risk factors linked to migraine?

Having high blood pressure, specifically high diastolic blood pressure, was linked to a slightly higher odds of ever having migraine in female participants, according to a new study published in the July 31, 2024, online issue of Neurology. Diastolic pressure is when the heart is resting between beats. However, the study did not find an increased risk between other cardiovascular risk factors and

Medical xPress 31 July at 06.27 AM

Study uncovers unique brain plasticity in people born blind

A study led by Georgetown University neuroscientists reveals that the part of the brain that receives and processes visual information in sighted people develops a unique connectivity pattern in people born blind. They say this pattern in the primary visual cortex is unique to each person—akin to a fingerprint.

Medical xPress 30 July at 03.52 PM

New work focuses on lack of TIMP-1 expression in the brains of MS patients

with a close family member living with multiple sclerosis Stephen J. Crocker, Ph.D., associate professor of neuroscience and immunology at UConn School of Medicine, takes his research personally.

Medical xPress 30 July at 12.23 PM

Spatial pattern of pathological changes in the brain can help identify dementia vulnerability early

Findings from a novel study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, suggest that using a specialized diffusion weighted MRI scan to monitor the spatial pattern of individual cortical microstructural change in the brain may be a promising approach to characterize individuals who may be vulnerable to developing Alzheimer's disease (AD) prior to significant cognitive declin

Medical xPress 30 July at 10.00 AM

Bilateral focused ultrasound shown to be safe, effective for patients with lingering or severe essential tremor

In a study published in JAMA Neurology co-authored by Vibhor Krishna, MD, associate professor of neurosurgery at the UNC School of Medicine, researchers found that a staged bilateral focused ultrasound treatment for essential tremor is safe and effective. Essential tremor, a neurological condition that causes involuntary and rhythmic shaking, can be so profound that typical life tasks become diffi

Medical xPress 30 July at 06.43 AM

Neurons in the frontal cortex help macaque monkeys decode social interactions, study shows

By studying the brains of macaque monkeys during turn-taking exercises, researchers may be one step closer to understanding how individual neurons in the frontal cortex work together to analyze spatial locations of other individuals in social contexts.

Medical xPress 29 July at 06.30 PM

Inflammatory activity of rheumatoid arthritis linked to specific cognitive impairments

The inflammatory activity in the body caused by rheumatoid arthritis is linked to specific cognitive impairments, finds a small comparative study, published in the open access journal RMD Open.

Medical xPress 29 July at 04.01 PM

Video: The neuroscience of fencing

To make it to the Olympics, elite athletes spend countless hours preparing not only their bodies—but their brains, as well.

Medical xPress 29 July at 12.53 PM

Brain cell grafts in monkeys jump-start human trial for new Parkinson's treatment

People with Parkinson's disease are receiving a new treatment in a clinical trial started after University of Wisconsin–Madison scientists demonstrated the safety and feasibility of the therapeutic delivery method in a study of non-human primates.

Medical xPress 29 July at 11.00 AM

Advanced 'Parkinson's in a dish' model accelerates brain disease research

Researchers at Brigham and Women's Hospital, a founding member of the Mass General Brigham health care system, have developed a model that rapidly converts stem cells to brain cells with protein structures characteristic of Parkinson's disease (PD), enabling the study of the condition's unique and highly variable disease pathology in a petri dish.

Medical xPress 29 July at 10.58 AM

New research suggests deaf children interact with parents like their hearing peers

A new study led by a Keele University research team has found that deaf toddlers fitted with cochlear implants interact with their parents just as well as their hearing peers.

Medical xPress 29 July at 10.55 AM

Teen alcohol exposure impairs behavioral flexibility and learning, shows persistent effects on brain chemistry

Rats with alcohol exposure in adolescence are less able as adults to adapt their behavior in changing circumstances, according to a study that highlights the possible brain mechanisms involved. The findings may help us better understand ways that alcohol use during the teen years can lead to long-lasting cognitive and behavioral impairments.

Medical xPress 29 July at 05.00 AM

Non-invasive device uses magnetoneurography to record involuntary nervous system

A research team led by UC San Diego has, for the first time, shown that a wearable, non-invasive device can measure activity in human cervical nerves in clinical settings.

Medical xPress 26 July at 11.51 AM

Building bridges between cells for brain health: Research finds microglia rescue neurons through tunneling nanotubes

The brain contains many cell types, from the prominent neurons to the lesser-known microglia. The latter are integral to the brain's immune system and play a crucial role as the brain's cleanup crew. A recent study conducted by researchers from the University Hospital Bonn and the Luxembourg Centre for Systems Biomedicine (LCSB) at the University of Luxembourg, in collaboration with colleagues fr

Medical xPress 26 July at 10.08 AM

Mitochondria support immune response to central nervous system injuries, scientists discover

Northwestern Medicine scientists have discovered that mitochondria are not necessary for the proliferation of specialized immune cells in the central nervous system, but do help those cells respond to demyelinating injuries, according to a study published in Nature Metabolism.

Medical xPress 26 July at 09.44 AM

A new therapeutic target offers a promising pathway for multiple sclerosis treatment

Researchers from Kyushu University have identified a potential therapeutic target for the treatment of advanced multiple sclerosis (MS), a potentially disabling condition associated with the central nervous system.

Medical xPress 25 July at 05.03 PM

Researchers close in on new technology for objectively measuring pain

On a scale of one to ten, how much pain do you feel?

Medical xPress 25 July at 04.48 PM

Antisense oligonucleotide treatment shows promise in treating Parkinson's disease progression

Parkinson's disease (PD), as well as many other neurodegenerative disorders, has shown a link between the abnormal aggregation of a protein called α-synuclein (aSyn) and neuronal death. These aggregates, known as Lewy bodies and Lewy neurites depending on their subcellular localization, can spread by continuously causing normal endogenous aSyn to misfold.

Medical xPress 25 July at 02.00 PM

Machine learning shows potential for predicting multiple sclerosis progression

Machine learning models can reliably inform clinicians about the disability progression of multiple sclerosis, according to a study published in the open-access journal PLOS Digital Health by Edward De Brouwer of KU Leuven, Belgium, and colleagues.

Medical xPress 25 July at 10.50 AM

Chaotic dynamics in the brain may enable probabilistic thinking

Chaos may be behind the brain's ability to compute probabilities, according to a new analysis by two neuroscientists at RIKEN. The research is published in the Proceedings of the National Academy of Sciences.

Medical xPress 25 July at 10.11 AM

Scientists create novel anti-thrombogenic coatings to overcome endovascular therapy challenges

A researcher at AIST, in collaboration with the Japan Medical Startup Incubation Program (JMPR) and N.B. Medical Corporation, has developed a novel anti-thrombogenic coating for stents used in the treatment of intracranial aneurysms. The details of this technology were published in Scientific Reports on July 10, 2024.

Medical xPress 25 July at 09.19 AM

Cell aging discovery could help detect early warning signs for neurodegenerative diseases

A team from King's College London and collaborators have pinpointed how different areas of the neuron age differently, with a potential knock-on effect on healthy cell function and the development of neurodegenerative conditions. The paper is published in the journal Aging Cell.

Medical xPress 24 July at 05.24 PM

Daily rhythms depend on receptor density in biological clock, study shows

In humans and other animals, signals from a central circadian clock in the brain generate the seasonal and daily rhythms of life. They help the body to prepare for expected changes in the environment and also optimize when to sleep, eat and do other daily activities.

Medical xPress 24 July at 03.40 PM

New research offers insight on preventing brain damage in preterm babies

Mark Petersen, MD, has seen firsthand the devastating effects of brain bleeds in premature babies. It's an exceedingly common condition that affects up to 20% of infants born before 28 weeks of gestation, bringing an increased risk for developmental delays and autism.

Medical xPress 24 July at 01.22 PM

Researchers find changes in pathway strength for Parkinson's disease models

An interdisciplinary team of scientists has found changes in the strength of neural pathways in an area of the brain involved in reward processing and movement coordination when someone has Parkinson's disease.

Medical xPress 24 July at 12.37 PM

Study explores machine learning for classifying functional neurological disorder

In a study published in the Journal of Neurology, Neurosurgery & Psychiatry, David L. Perez, MD, MMSc, Founding Director of the Functional Neurological Disorder Unit at Massachusetts General Hospital and an associate professor of Neurology and Psychiatry at Harvard Medical School, and others, investigated whether structural brain MRI has the potential to be a clinically useful tool for diagnosing

Medical xPress 24 July at 11.10 AM

First long-term study shows use of socially assistive robot improves stroke rehabilitation

Using a socially assistive robot (SAR) in post-stroke rehabilitation improves outcomes, according to Ben-Gurion University of the Negev researchers. They conducted the first long-term study of robot use in physical therapy. The study opens a totally new method for rehabilitation exercises.

Medical xPress 24 July at 11.00 AM

Study across multiple brain regions discerns Alzheimer's vulnerability and resilience factors

An MIT study published in Nature provides new evidence for how specific cells and circuits become vulnerable in Alzheimer's disease, and hones in on other factors that may help some people show resilience to cognitive decline, even amid clear signs of disease pathology.

Medical xPress 24 July at 11.00 AM

Neuroscientists discover brain circuitry of placebo effect for pain relief

The placebo effect is very real. This we've known for decades, as seen in real-life observations and the best double-blinded randomized clinical trials researchers have devised for many diseases and conditions, especially pain. And yet, how and why the placebo effect occurs has remained a mystery. Now, neuroscientists have discovered a key piece of the placebo effect puzzle.

Medical xPress 23 July at 03.58 PM

Multiple sclerosis progression linked to immune response outside the brain

New research, led by the University of Southampton and University Hospital Southampton, shows that inflammation outside the brain, such as that caused by common infections such as colds and urine infections, is linked to the progression of multiple sclerosis (MS).

Medical xPress 23 July at 03.26 PM

How does the brain respond to sleep apnea? Researchers pinpoint two neurochemicals

Nearly 40 million adults in the U.S. have sleep apnea, and more than 30 million of them use a continuous positive airway pressure (CPAP) machine while sleeping. However, the machines tend to be expensive, clunky and uncomfortable—resulting in many users giving up on using them.

Medical xPress 23 July at 01.26 PM

AI could change the way we measure brain pressure in neurocritical patients

A Johns Hopkins University research team has developed an algorithm to non-invasively measure intracranial pressure (ICP) using vital sign data routinely checked in the ICU.

Medical xPress 22 July at 03.56 PM

Research reveals possible link between gastrointestinal syndromes and risk of brain aneurysm

There is a potential connection between a diagnosis of certain gastrointestinal (GI) syndromes and the formation and rupture of intracranial (brain) aneurysms, according to research presented today at the Society of NeuroInterventional Surgery's (SNIS) 21st Annual Meeting.

Medical xPress 22 July at 03.52 PM

New study shows updated stroke evaluation protocols increase patient access to lifesaving stroke treatment

Changing standard procedures for evaluating and treating patients with suspected stroke has led to improved access to lifesaving stroke surgery across the state of Delaware and should inform triage and treatment nationwide, according to research released today at the Society of NeuroInterventional Surgery's (SNIS) 21st Annual Meeting.

Medical xPress 22 July at 03.41 PM

Study finds non-medical factors, including proximity to a coal mine, may lead to worse recovery from stroke

Research presented at the Society of NeuroInterventional Surgery's (SNIS) 21st Annual Meeting highlights the role of socioeconomic variables and their role in successful recovery after stroke surgery, specifically the impact of living in a coal-mining county.

Medical xPress 22 July at 03.39 PM

Study reveals stroke care concerns for non-English language patients

Non-English-speaking patients are less likely to arrive by ambulance when experiencing stroke symptoms and less likely to receive thrombectomy, according to research released today at the Society of NeuroInterventional Surgery's (SNIS) 21st Annual Meeting.

Medical xPress 22 July at 01.25 PM

Neuroscientists use brain activity patterns to reveal thoughts of brain-injured patients

The very thought of being 'locked in' following a brain injury or even aware during general anesthesia induces fear because it awakens the classic terror trope of being buried alive. But what does it mean to be awake, but entirely unable to respond, and what can this tell us about consciousness itself?

Medical xPress 22 July at 09.50 AM

Study identifies new biomarkers of Alzheimer's disease

Recent advances in the study of proteomes (i.e., the entire range of proteins expressed by human cells and tissues) have opened new opportunities for identifying the biological markers of specific diseases or mental disorders. This could in turn inform the prevention, diagnosis and treatment of these medical conditions.

Medical xPress 19 July at 12.24 PM

Study finds people who lost sight early in life are less accurate at estimating auditory distances

New research has found that people who experience partial vision loss in early childhood find it more difficult to accurately judge the location of a sound than those who lose sight later in life.

Medical xPress 19 July at 09.10 AM

Lab-grown human neuron assembloids effectively model synaptic plasticity

The ability to study human neurological systems depends on having viable, accurate models of brain function. St. Jude researchers have now created a model for such research by combining thalamic cells and cortical cells derived from human induced pluripotent stem cells.

Medical xPress 19 July at 09.08 AM

Good timing: Study unravels how our brains track time

Ever hear the old adage that time flies when you're having fun? A new study by a team of UNLV researchers suggests that there's a lot of truth to the trope.

Medical xPress 18 July at 04.48 PM

Forecasting method may help people with epilepsy predict their seizures

A team of epilepsy specialists at UC San Francisco has developed a method to predict 24-hour seizure risk. The discovery, which may be scalable to large numbers of patients, could help to improve the quality of life for the 2.9 million Americans living with the daily uncertainties of epilepsy.

Medical xPress 18 July at 04.03 PM

Brain changes linked to obesity result in low sperm count, mouse study finds

Obesity is known to cause lower testosterone in men, impacting muscle mass and cognition, as well as reproductive function by diminishing sperm numbers and lowering libido. Just how obesity produces these changes, in addition to causing cardiovascular disease and type 2 diabetes, is not fully understood.

Medical xPress 18 July at 11.41 AM

Late bedtimes and not enough sleep can harm developing brains—and poorer kids are more at risk, say neuroscientists

Shorter sleep and later bedtimes are linked to potentially harmful functional changes to parts of the brain important for coping with stress and controlling negative emotions, our recently published research found. And children in families with low economic resources are particularly at risk.

Medical xPress 18 July at 11.30 AM

Exploring how astrocytes respond to spinal cord injury or stroke-induced tissue damage

Past neuroscience studies found that when the central nervous system (CNS) is damaged, for instance following a stroke or spinal cord injuries, the lesions become surrounded by borders of newly proliferated astrocytes.

Medical xPress 18 July at 11.15 AM

How different areas of the prefrontal cortex influence time variability in individual monkeys

Neuroscientists from RIKEN have discovered the effects that different areas in the prefrontal cortex of macaque monkeys have on the variability in the time it takes them to perform tasks involving quick decisions. This information could help to tailor rehabilitation for people with injuries to their prefrontal cortex.

Medical xPress 18 July at 10.35 AM

Analyzing internal world models of humans, animals and AI

A team of scientists led by Prof. Dr. Ilka Diester, Professor of Optophysiology and spokesperson of the BrainLinks-BrainTools research center at the University of Freiburg, has developed a formal description of internal world models and published it in the journal Neuron.

Medical xPress 18 July at 09.18 AM

Computational neuroscientists show how astrocytes increase flexible learning

Star-shaped glial cells, so-called astrocytes, are more than just a supporting cell of the brain. They are actively involved in learning processes and interact with nerve cells. But what exactly is it that astrocytes do?

Medical xPress 18 July at 06.24 AM

Study suggests disparities in post-acute stroke care depend on insurance status

Insurance-dependent racial and ethnic disparities and regional variations are seen in post-acute service utilization after stroke, according to a study published online July 17 in Neurology: Clinical Practice.

Medical xPress 18 July at 03.00 AM

Q&A: Research shows young infants use their mother's scent to perceive faces

Humans see the world through the five senses, but how and when the ability to integrate across the senses arises is debated. Research shows that humans combine sensory information together, particularly when one sense is not able to produce a sufficient response alone. Studies also show that infants may use multisensory cues to perceive their environments more efficiently.

Medical xPress 17 July at 05.13 PM

Training program facilitates home-based transcranial electrical stimulation

Traveling to and from a clinic or a laboratory for treatment can be difficult and expensive for older Americans. To address this, scientists developed and tested a new training and supervision program for older adults so they can receive Transcranial Electrical Stimulation (tES), a promising intervention for various clinical conditions, in their homes.

Medical xPress 17 July at 04.31 PM

Gut protein may protect brain cells in Parkinson's disease

Nearly 10 million people worldwide suffer from Parkinson's disease (PD), a condition causing muscle rigidity and tremors due to the loss of the chemical dopamine in the brain. One cause of PD is exposure to toxins. In a recent study, Thomas Jefferson University's Scott A. Waldman, MD, Ph.D., and his team discovered that a gut receptor protein called GUCY2C could prevent PD development by protectin

Medical xPress 17 July at 03.00 PM

New technique could help treat aggressive brain tumors

Tackling brain cancer is complicated, but recent research could help add another tool to the cancer-fighting arsenal. A team from Georgia Tech and Virginia Tech has published a paper in APL Bioengineering that explores a new option that could one day be used to target glioblastoma, a deadly and fast-growing brain tumor.

Medical xPress 17 July at 02.52 PM

Alzheimer's discovery holds potential to improve drugs

A significant discovery by Australian scientists has the potential to improve the effectiveness of drugs currently used to manage cognitive decline in patients with Alzheimer's disease.

Medical xPress 17 July at 01.50 PM

Brain changes seen in kids with conduct disorder

Defiance, tantrums, aggression: All signs of a condition called conduct disorder, which Mental Health America says affects up to 16% of boys and 9% of girls.

Medical xPress 17 July at 01.25 PM

How our brains learn new athletic skills fast: Investigating electrocortical activity and faster locomotor adaptation

You join a swing dance class, and at first you're all left feet. But—slowly, eyes glued to the teacher—you pick up a step or two and start to feel the rhythm of the big band beat. A good start. Then you look over and realize the couple next to you has picked up twice the steps in half the time. Why?

Medical xPress 17 July at 11.28 AM

Scientists define new type of memory loss in older adults

Researchers at Mayo Clinic have established new criteria for a memory-loss syndrome in older adults that specifically impacts the brain's limbic system. It can often be mistaken for Alzheimer's disease. The good news: Limbic-predominant Amnestic Neurodegenerative Syndrome, or LANS, progresses more slowly and has a better prognosis, and is now more clearly defined for doctors working to find answer

Medical xPress 17 July at 10.22 AM

New atlas aims to replace uniform traumatic brain injury treatment with precision medicine

Researchers at Phoenix's Barrow Neurological Institute and the University of Pittsburgh have created a vast interactive atlas that may eventually help doctors use precision medicine to target treatments for traumatic brain injury (TBI) patients—and could replace the existing uniform treatment model. The research is published in the journal Neuron.

Medical xPress 16 July at 07.10 PM

Multiple concussions in rugby players associated with higher levels of proteins linked to neurodegenerative disease

Retired rugby players who have suffered multiple concussions have higher levels of certain proteins in their blood, which may make them more prone to developing diseases such as motor neuron disease (MND), according to a new study.

Medical xPress 16 July at 04.27 PM

Scientists find small regions of the brain can take micro-naps while the rest of the brain is awake and vice versa

Sleep and wake: They're totally distinct states of being that define the boundaries of our daily lives. For years, scientists have measured the difference between these instinctual brain processes by observing brain waves, with sleep characteristically defined by slow, long-lasting waves measured in tenths of seconds that travel across the whole organ.

Medical xPress 16 July at 02.19 PM

New template of the human brain enhances neuroimaging data analysis

The human brain is responsible for critical functions, including perception, memory, language, thinking, consciousness, and emotions.

Medical xPress 16 July at 02.13 PM

Socioeconomic deprivation linked to higher risk of epilepsy related to traumatic brain injury

Socioeconomic deprivation increases the risk for sustaining a traumatic brain injury (TBI), and in some age groups, it may also increase the risk for epilepsy after a TBI, according to a research letter published in the July issue of Epilepsy & Behavior.

Medical xPress 16 July at 10.58 AM

US stroke survival is improving, but race still plays role

There's good news and bad for stroke survival in the United States: New research shows that Americans are now more likely to survive long-term, but that's more true for whites than for Black Americans.

Medical xPress 16 July at 10.55 AM

Understanding others: By age three, we can do this with mirror neurons

By the age of three, children are capable of understanding others, "mirroring" those they are with to imitate and anticipate their intentions. They are able to do it thanks to the sophisticated neurofunctional architecture that is necessary to understand others' intentions, the mirror neurons, that are already active at this age.

Medical xPress 15 July at 04.50 PM

Atomic force microscopy in the characterization and clinical evaluation of neurological disorders

Neurological disorders are becoming an increasingly significant societal burden, highlighting the critical need for improved diagnostic and therapeutic approaches. Atomic force microscopy (AFM), known for its nanometer-scale resolution and piconewton-scale force sensitivity, offers insights into the biomechanical properties of brain cells and tissues and their interactions within their microenviro

Medical xPress 15 July at 04.00 PM

Study finds long-term stroke survival improving, but racial disparities remain

Overall rates of long-term survival following stroke are improving, but Black individuals experience worse long-term outcomes compared to white individuals, according to University of Cincinnati research published online July 15 in Neurology.

Medical xPress 15 July at 03.50 PM

Hospital admissions for epilepsy change with climatic factors

Changes in climate are possible trigger factors for seizure-related hospitalizations in patients with epilepsy, according to a study published online June 11 in the Journal of Clinical Medicine.

Medical xPress 15 July at 03.35 PM

New study reveals immune protein's critical role in neuronal function and aging

A study conducted at the lab of Beth Stevens, Ph.D., at Boston Children's Hospital, has revealed that an immune protein impacts neuronal protein synthesis in the aging brain. Previous work from the Stevens lab had uncovered that immune cells in the central nervous system, microglia, help prune synapses in the developing brain by tagging synapses with the immune protein C1q.

Medical xPress 15 July at 03.11 PM

Scientists describe biomarkers associated with brain injury

In recent times, research on brain injury has garnered significant attention, particularly for understanding the cellular and molecular changes that are associated with neurological diseases. In this context, the study of different clinical biomarkers can shed light on the various pathological processes that lead to brain injury.

Medical xPress 15 July at 01.26 PM

Study reveals link between playing contact sports and parkinsonism in individuals with chronic traumatic encephalopathy

The largest study of CTE to date has found a new link between playing contact sports, chronic traumatic encephalopathy (CTE), and the development of a movement disorder known as parkinsonism.

Medical xPress 15 July at 12.27 PM

Accurate and continuous remote monitoring of step length can be sensitive marker for neurological diseases and aging

Researchers have used machine learning technologies to develop an algorithm that converts data from a small, lightweight, waterproof wearable sensor taped to the lower back into an accurate estimate of step length. The model is almost four times more accurate than the currently accepted biomechanical model.

Medical xPress 15 July at 11.00 AM

Study pinpoints origins of creativity in the brain

Have you ever had the solution for a tough problem suddenly hit you when you're thinking about something entirely different? Creative thought is a hallmark of humanity, but it's an ephemeral, almost paradoxical ability, striking unexpectedly when it's not sought out.

Medical xPress 15 July at 09.19 AM

Visualizing addiction: How new research could change the way we fight the opioid epidemic

New research from a Max Planck Florida Institute for Neuroscience researcher could transform how we understand the way opioids affect the brain. Despite significant discussion surrounding the ongoing opioid crisis, current understanding of how opioids function in the brain is quite limited. This is primarily due to challenges in observing and measuring opioid effects in the brain in real-time.

Medical xPress 12 July at 02.00 PM

Scientists identify possible way to block muscle fatigue in long COVID, other diseases

Infections and neurodegenerative diseases cause inflammation in the brain. But for unknown reasons, patients with brain inflammation often develop muscle problems that seem to be independent of the central nervous system. Now, researchers at Washington University School of Medicine in St. Louis have revealed how brain inflammation releases a specific protein that travels from the brain to the musc

Medical xPress 12 July at 12.50 PM

Possible link between parental smoking and increased risk for multiple sclerosis

Exposure to parental smoking (ParS) is associated with an increased risk for multiple sclerosis (MS) in later life in certain populations, according to a study presented at EAN 2024, the 10th Congress of the European Academy of Neurology, held from June 29 to July 2 in Helsinki.

Medical xPress 12 July at 12.13 PM

Study reveals witnessing violence harms brains of older teens, but 'transcendent thinking' may be an antidote

These latest findings from CANDLE (USC Center for Affective Neuroscience, Development, Learning and Education) researchers show that teens who think about social issues and violence in more reflective ways show greater resilience to the effects of violence exposure on their brain development.

Medical xPress 12 July at 10.59 AM

Alternative understanding of brain leads to new treatments for stroke patients

Since the early 20th century, researchers believed that movements on the right and left sides of the body were controlled by the opposite hemisphere of the brain and that handedness resulted from the dominant side doing a better job at controlling movements.

Medical xPress 11 July at 05.03 PM

Nanosized sensor could help advance treatment for spinal cord disease, injury

Implantable technologies have significantly improved our ability to study and even modulate the activity of neurons in the brain, but neurons in the spinal cord are harder to study in action.

Medical xPress 11 July at 04.41 PM

Ultrasound technology can be used to boost mindfulness, study finds

One of the intriguing abilities of the human mind is daydreaming, where the mind wanders off into spontaneous thoughts, fantasies and scenarios, often without conscious effort, allowing creativity and reflection to flow freely.

Medical xPress 11 July at 03.07 PM

Being a 'night owl' is associated with mental sharpness, study finds

A study investigating the effect of sleep on brain performance has found a link between an individual's preference for morning or evening activity and their brain function, suggesting that self-declared "night owls" generally tend to have higher cognitive scores.

Medical xPress 11 July at 01.40 PM

Electrodes implanted in brain pick up faint 'inner voice' signal by probing intersection of speech and movement: Study

Russian researchers from Skoltech, the Federal Center of Neurosurgery in Tyumen, Sechenov University, and Lomonosov Moscow State University have conducted a study of brain activity in two patients with electrodes implanted in their brains, while they performed speech-related and handwriting tasks.

Medical xPress 11 July at 01.13 PM

Study sheds light on how the brain adapts hearing in different listening situations

Have you ever noticed how you can suddenly hear your refrigerator humming in the background when you focus on it? Or how the sound of your name instantly catches your attention even in a noisy crowd?

Medical xPress 11 July at 12.50 PM

How AI might help in diagnosing mild concussions

Whether it's from a sports injury, whiplash, or a bump to the head, many patients with mild concussion don't even realize their minor injury can, if untreated, cause lifelong severe health issues. Even if a patient goes to the ER with their injury, it's estimated that 50%–90% of concussion cases go without a formal diagnosis, putting them at risk of dangerous complications such as brain bleeds and

Medical xPress 11 July at 11.47 AM

Cerebellum study identifies potential therapeutic target for management of thirst disorders

The cerebellum, often referred to as the "little brain," has captivated researchers for centuries due to its unique structure and cellular complexity, as one of the most ancient brain regions in evolutionary terms. It has traditionally been viewed only as a motor control center; however, recent studies have revealed its involvement in non-motor functions such as cognition, emotion, memory, autonom

Medical xPress 11 July at 11.02 AM

Visual brain areas switch their state as soon as the eyes are opened, study shows

A recent study conducted by researchers at Forschungszentrum Jülich (Germany) reveals insights into the functioning of the visual cortex of macaques. The findings, published in Cell Reports, demonstrate that the primary visual cortex, also called V1, in monkeys shows two different patterns of brain activity depending on whether their eyes are open or closed.

Medical xPress 11 July at 10.38 AM

New immune cell therapy benefits lab models of ALS and shows positive results in an individual with the disease

Immune system dysregulation and elevated inflammation contribute to the development of the fatal neurodegenerative condition amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease.

Medical xPress 11 July at 10.38 AM

Molecular insights into cognitive impairment: New research uncovers how Parkinson's affects the brain

Parkinson's is associated with a higher risk of cognitive impairment and dementia that can severely impact quality of life. Cognitive symptoms include deficits in attention and mental flexibility, among others, and can pre-date the tremors and rigidity used to diagnose the disease.

Medical xPress 11 July at 06.50 AM

Coordinated activity of mossy cells contributes to encoding of spatial and contextual memories, study finds

The hippocampus is a crucial region in the brain of mammals, which has been predominantly linked to the formation of memories. The retrieval of memories stored in the hippocampus at a later stage relies on a process known as "pattern separation," which entails the separate processing of and encoding of similar memories.

Medical xPress 10 July at 04.00 PM

Models show promise in predicting cognitive decline in early Alzheimer's

A new study, published in the July 10 online issue of Neurology, looks at predicting how quickly people with early Alzheimer's disease will experience cognitive decline. The study also looked at how the new drugs recently approved for the disease may reduce decline.

Medical xPress 10 July at 02.30 PM

New material derived from graphene improves the performance of neuroprostheses

After an amputation or a severe nerve injury, patients lose to a greater or lesser extent the ability to move and feel a lost limb, which limits their autonomy in activities of daily living. Currently, the only strategy that allows recovery of the lost functions consists of neuroprostheses: electrodes capable of stimulating the nerves to induce specific sensations, and of recording motor signals

Medical xPress 10 July at 01.46 PM

Cognitive skills in early toddlerhood: Study demonstrates importance of 16-months

Toddlers engage more regions of their brains around 16-months to help them develop important cognitive skills, enabling them to follow simple instructions and control impulses. Findings from the study, led by the Universities of Bristol and Oxford, and published in Imaging Neuroscience, suggests 16 months is a critical period for brain development.

Medical xPress 10 July at 12.56 PM

Brain region involved in oxycodone relapse identified

Even years after they have recovered, a person who once struggled with alcohol or opioid addiction can relapse—and that relapse is more likely to occur during particularly stressful times.

Medical xPress 10 July at 12.54 PM

Research reveals exercise brain boost can last for years

A longitudinal study by University of Queensland researchers has found high-intensity interval exercise improves brain function in older adults for up to five years.

Medical xPress 10 July at 11.00 AM

Discovery could help reduce adverse side effects of popular next-generation obesity medications

The next chapter in the story of headline-making popular obesity drugs may center on the physiological relationship between feeling satisfied after a meal versus the neurological control of nausea. By teasing apart the therapeutic benefits from the adverse effects of these medications, researchers from the Monell Chemical Senses Center found a population of neurons in the brain that controls food

Medical xPress 09 July at 10.51 AM

Brain-computer interface therapy enhances hand mobility for stroke survivors, finds study

A personalized brain-computer interface therapy, RehabSwift, significantly enhances hand mobility for stroke survivors. Strokes often lead to impaired hand function, presenting substantial challenges in daily activities. Sam Darvishi and colleagues developed and tested a brain-computer interface therapy that translates imagined hand movements into real actions using a personalized algorithm and bi

Medical xPress 09 July at 10.05 AM

Researchers identify cause of serious brain bleeding condition in premature newborns

A recent study by investigators from Massachusetts General Hospital reveals insights that could lead to new treatments for a serious brain bleeding condition that's common in newborns with very low birth weight. The findings are published in Brain.

Medical xPress 09 July at 09.36 AM

Brain neurotransmitter receptor antagonist found to prevent opioid addiction in mice

New research led by UCLA Health has found a drug that treats insomnia works to prevent the addictive effects of the morphine opioids in mice while still providing effective pain relief.

Medical xPress 09 July at 07.21 AM

Beyond PMS: A poorly understood disorder means periods of despair for some women

For decades, a lack of investment in women's health has created gaps in medicine. The problem is so prevalent that, this year, President Joe Biden signed an executive order to advance women's health research and innovation.

Medical xPress 08 July at 04.49 PM

Erasing 'bad memories' to improve long term Parkinson's disease treatment

Common treatments for Parkinson's disease can address short-term symptoms, but can also cause extensive problems for patients in the long run. Namely, treatments can cause dyskinesia, a form of uncontrollable movements and postures.

Medical xPress 08 July at 01.05 PM

Brain-imaging study reveals curiosity as it emerges

You look up into the clear blue sky and see something you can't quite identify. Is it a balloon? A plane? A UFO? You're curious, right? A research team based at Columbia's Zuckerman Institute has for the first time witnessed what is happening in the human brain when feelings of curiosity like this arise.

Medical xPress 05 July at 11.19 AM

Nanoscopic motor proteins in the brain build the physical structures of memory, study finds

The puzzle of memory has intrigued philosophers and intellects for a very long time. Plato and Aristotle believed that memory was found only in the realm of the soul and the mind, but there was nothing corporeal or physical about it. Memory is closely tied to our sense of self and subjective experiences, but there are physical processes that are associated with remembering.

Medical xPress 05 July at 10.51 AM

Scientists map the distribution of lipids in the human brain

Scientists have found that 93% of the lipids in brain tissue are distributed differently in the white and gray matter, the subcortex, the visual and motor cortices, and the prefrontal cortex, which is responsible for decision-making, social behavior, and other functions.

Medical xPress 04 July at 11.40 AM

Team succeeds in determining the exact moment when the brain detects another person's gaze direction

The gaze plays a central role in everyday social interactions. Our capacity for instant communication relies on the brain's ability to detect and interpret the direction of others' gaze. How does our brain detect gaze direction, and what factors influence the process?

Medical xPress 04 July at 11.20 AM

Researchers unveils a critical role of the lateral septum in drug addiction

A research team led by Dr. Zhu Yingjie from the Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences has published a study in Neuron that presents a comprehensive transcriptional profile of the lateral septum (LS) at the single-cell level, elucidating the spatial distribution of its major neuronal types.

Medical xPress 04 July at 10.20 AM

Hippocampus uses dual pathways for memory storage

The mechanism by which our brains record events in stereo—with one channel recording details and another recording general impressions—has been elicited by two RIKEN neuroscientists.

Medical xPress 04 July at 10.20 AM

Study discovers a 'brain thesaurus' that lets neurons derive meaning from spoken words

Using a novel technology for obtaining recordings from single neurons, a team of investigators at Massachusetts General Hospital, a founding member of the Mass General Brigham health care system, discovered a microscopic "thesaurus" that reflects how word meanings are represented by neurons in the human brain.

Medical xPress 04 July at 10.13 AM

Midbrain dopamine neurons can retain short-term memories, study shows

Dopamine neurons in the midbrain are involved in storing short-term memories—a function previously thought to be conducted solely in the prefrontal cortex—two RIKEN neuroscientists have shown1. The work is published in the journal eLife.

Medical xPress 04 July at 10.10 AM

How our blood-brain barrier stops bugs and toxins getting to our brain

Our brain is an extremely complex and delicate organ. Our body fiercely protects it by holding onto things that help it and keeping harmful things out, such as bugs that can cause infection and toxins.

Medical xPress 04 July at 09.36 AM

Driverless cars struggle to track objects while moving: So why don't our eyes?

New research may have turned more than 100 years of thinking about the way our brains process visual information on its head.

Medical xPress 03 July at 04.00 PM

Scientists may have discovered how to diagnose elusive neuro disorder

Progressive supranuclear palsy (PSP), a mysterious and deadly neurological disorder, usually goes undiagnosed until after a patient dies and an autopsy is performed. But now, UC San Francisco researchers have found a way to identify the condition while patients are still alive.

Medical xPress 03 July at 02.53 PM

Study finds brain stores motor memories differently based on decision uncertainty

A study published in the journal Nature Human Behaviour challenges the belief that identical physical actions are governed by the same motor memory, regardless of the decision-making process involved. Researchers from the National Institute of Information and Communications Technology (NICT) and HONDA R&D Co., Ltd. have discovered that the brain differentiates and stores motor memories based on th

Medical xPress 03 July at 02.40 PM

Cracking the code for cerebellar movement disorders

The cerebellum is a region of the brain that helps us refine our movements and learn new motor skills. Patients and mouse models experience many kinds of abnormal movements when their cerebellum is damaged. They can have uncoordinated and unbalanced movements, called ataxia. They can have atypical positioning of body parts or uncontrolled movements because their muscles are working against each ot

Medical xPress 03 July at 11.56 AM

Discovery of cellular mechanism to maintain brain's energy could benefit late-life brain health

A key mechanism which detects when the brain needs an additional energy boost to support its activity has been identified in a study in mice and cells led by UCL scientists.

Medical xPress 02 July at 11.50 AM

The path to Parkinson's disease: All roads lead to the nigrosome

The main neuropathological feature of Parkinson's disease is the loss of dopaminergic neurons in the substantia nigra pars compacta. Specifically, dopaminergic neurons in the ventral tier of the substantia nigra pars compacta, also known as the nigrosome, are notably affected in Parkinson's disease, whereas those in the dorsal tier and ventral tegmental area demonstrate a much lower degree of dege

Medical xPress 02 July at 11.28 AM

Sound stimulation aids saccular dysfunction with Meniere disease

Sound stimulation of 75 dB at a frequency of 100 Hz leads to improvement in cervical vestibular-evoked myogenic potential (cVEMP) amplitude in patients with definitive Meniere disease, according to a study published online June 24 in Acta Oto-Laryngologica.

Medical xPress 02 July at 11.27 AM

Tactile imagery increases corticospinal excitability, study finds

The ability to imagine is one of the key human cognitive functions. In a paper published in the Scientific Reports journal, researchers from Skoltech and Moscow State University investigated the effect of imagining tactile sensations (tactile imagery) on the excitability of the corticospinal tract using the transcranial magnetic stimulation method.

Medical xPress 02 July at 11.00 AM

Genetic study points to oxytocin as possible treatment for obesity and postnatal depression

Scientists have identified a gene which, when missing or impaired, can cause obesity, behavioral problems and, in mothers, postnatal depression. The discovery, reported in Cell, may have wider implications for the treatment of postnatal depression, with a study in mice suggesting that oxytocin may alleviate symptoms.

Medical xPress 02 July at 11.00 AM

Researchers discover a new face-detecting brain circuit

Scientists at the National Institutes of Health (NIH) have uncovered a brain circuit in primates that rapidly detects faces. The findings help not only explain how primates sense and recognize faces, but could also have implications for understanding conditions such as autism, where face detection and recognition are often impaired from early childhood.

Medical xPress 02 July at 10.50 AM

Form of B12 deficiency in cerebral spinal fluid found to negatively affect the central nervous system

A large team of doctors and medical researchers with diverse backgrounds, affiliated with several institutions across the U.S., and led by a group at the University of California, San Francisco, has found what might be a previously unknown kind of autoimmune disease—one that negatively impacts the central nervous system.

Medical xPress 02 July at 09.50 AM

Chorus or cacophony? Cicada song hits some ears harder than others

Shhhooo. Wee-uuu. Chick, chick, chick. That's the sound of three different cicada species. For some people, those sounds are the song of the summer. Others wish the insects would turn it down. The cacophony can be especially irritating for people on the autism spectrum who have hearing sensitivity.

Medical xPress 02 July at 12.20 AM

Study shows hairy skin does not become less sensitive with age

Our sense of touch is generally thought to decline with age, just like the other senses. However, a study has shown that age-related decline in sensitivity only happens in hairless skin like the tip of the index finger, but not in the hairy cheeks and forearms. The authors speculate that the exceptional sensitivity of the cheeks throughout life is due to our evolutionary history as social primates

Medical xPress 01 July at 05.00 PM

Study reveals strong links between the quality of a person's diet and cognitive ability over the course of life

Eating a high-quality diet in youth and middle age could help keep your brain functioning well in your senior years, according to new preliminary findings from a study that used data collected from over 3,000 people followed for nearly seven decades.

Medical xPress 01 July at 04.49 PM

Umbilical cord milking does not appear to increase risk of neurodevelopmental delay in non-vigorous infants

A treatment to move blood from the umbilical cord into the body of newborns who are limp, pale and with minimal breathing, known as non-vigorous, does not appear to increase the risk of neurodevelopmental impairment, according to a new study. The findings are published in the journal JAMA Network Open.

Medical xPress 01 July at 03.00 PM

Overlooked brain organ plays key role in promoting brain repair after stroke, researchers discover

University of Cincinnati researchers have pioneered an animal model that sheds light on the role an understudied organ in the brain has in repairing damage caused by stroke.

Medical xPress 01 July at 11.47 AM

A prosthesis driven by the nervous system helps people with amputation walk naturally

State-of-the-art prosthetic limbs can help people with amputations achieve a natural walking gait, but they don't give the user full neural control over the limb. Instead, they rely on robotic sensors and controllers that move the limb using predefined gait algorithms.

Medical xPress 01 July at 11.28 AM

Neural probe achieves brain-wide neuronal activity recording in macaque brain

Chinese researchers have developed a high-density, 1,024-channel neural probe, achieving a full-depth recording of neuronal activities in the brain of a macaque monkey for the first time in the world.

Medical xPress 01 July at 11.27 AM

Finding the sweet spot in brain development: Study discovers receptor protein regulates timing of temporary connections

Not everything in the brain is meant to last. As our brains assemble, trillions of neural connections have to be built or torn down at the right time and place. Otherwise, the seeds of disorders like autism can take root.

Medical xPress 01 July at 10.36 AM

Study shows activity of claustrum neurons controls alertness level, engagement of sensory information

A new study has uncovered the pivotal role of a brain structure called the claustrum in regulating engagement, from deep sleep to waking behavior.

Medical xPress 01 July at 09.53 AM

Scientists discover a new set of cells that control the blood-brain barrier

Researchers at the Perron Institute and The University of Western Australia have discovered a new set of cells that can protect blood vessel structure in the central nervous system (CNS) known as the blood-brain barrier. Their findings have been published in the journal Science Advances.

Medical xPress 01 July at 09.42 AM

New cellular mechanisms in Parkinson's disease discovered

A pair of recent studies led by Joseph Mazzulli, Ph.D., associate professor in The Ken & Ruth Davee Department of Neurology's Division of Movement Disorders, have uncovered previously unknown cellular mechanisms involved in neuronal protein aggregation and misfolding, key characteristics of Parkinson's disease.

Medical xPress 28 June at 02.00 PM

Serotonin 2C receptor regulates memory in mice and humans: Implications for Alzheimer's disease

Researchers at Baylor College of Medicine, the University of Cambridge in the U.K. and collaborating institutions have shown that serotonin 2C receptor in the brain regulates memory in people and animal models. The findings, published in the journal Science Advances, not only provide new insights into the factors involved in healthy memory but also in conditions associated with memory loss, like A

Medical xPress 28 June at 12.24 PM

Work-related nerve injuries are common with repetitive motions

Although you may not always realize it, many of the jobs you do can put strain on, and even cause damage to, your nerves.

Medical xPress 28 June at 11.17 AM

Visualizing core pathologies of Parkinson's disease and related disorders in live patients

In countries with an aging population, neurodegenerative disorders such as Parkinson's disease (PD) and dementia with Lewy bodies (DLB) are becoming more prevalent. These conditions, for which no definitive cure currently exists, are extremely difficult to diagnose accurately while the affected person is still alive. This has proved to be a major roadblock for researchers seeking to assess potenti

Medical xPress 28 June at 09.46 AM

Pilot study shows promise for remote cognitive rehabilitation for multiple sclerosis patients

A pilot study shows promise for a new treatment option for individuals with memory impairments caused by multiple sclerosis (MS). The article, "Exploring the efficacy of a remote strategy-based intervention for people with multiple sclerosis with everyday memory impairments: A pilot study," was published online on May 27, 2024, in the American Journal of Occupational Therapy.

Medical xPress 28 June at 08.44 AM

Protein maps created using scanning technology on cerebrospinal fluid to find markers for Alzheimer's

A large team of neuroscientists, biochemists and Alzheimer's specialists affiliated with institutions in the U.S. and Iceland has created a protein map to look for patterns in cerebrospinal fluid that may serve as markers for the onset of Alzheimer's disease decades before diagnosis.

Medical xPress 28 June at 07.50 AM

Researchers find brains can tune their navigation system without landmarks

Johns Hopkins research sheds new light on how mammals track their position and orientation while moving, revealing that visual motion cues alone allow the brain to adjust and recalibrate its internal map even in the absence of stable visual landmarks.

Medical xPress 28 June at 07.41 AM

Spinal cord formation in the embryo: The role of a protein family identified

Work by the team of Dr. Frédéric Charron recently published in The Journal of Neuroscience, identifies the fundamental role of a family of proteins, the β-arrestins, in the development of the nervous system at the embryonic stage.

Medical xPress 28 June at 05.57 AM