Articles tagged with Brain
Researchers analyzed fragments of glass in a Herculaneum skull and concluded that it likely formed when the individual died from a super-heated ash cloud. The brain was heated above 510 degrees Celsius before rapid cooling occurred as the cloud dissipated.
A new survey found that patients with neurological and mental health disorders prefer non-invasive neuromodulation interventions over current medications. The study, published in Scientific Reports, suggests that providing accurate information to patients improves their perception of these treatments.
A large-scale study found that people who engage in moderate to vigorous physical activity have a lower risk of developing dementia, stroke, anxiety, depression, and sleep disorders. The study also discovered that spending more time sitting increases the risk of developing these diseases.
Heavy screen use, particularly social media and video games, is associated with an increased risk of developing manic symptoms in U.S. preteens. The study found that prolonged screen time can lead to behaviors characteristic of bipolar-spectrum disorders, including inflated self-esteem, decreased sleep needs, and impulsivity.
A panel of experts identified key biomarkers for PND through a comprehensive literature review of 194 clinical studies. The study highlights the potential for these biomarkers to predict and diagnose PND, improving postoperative cognitive health in elderly patients.
A new study found that eating 50g of walnuts mixed into muesli and yoghurt improved reaction times and better memory performance in healthy young adults. The research, published this month, involved 32 participants who consumed a walnut-rich breakfast and a matched breakfast on separate occasions.
Researchers at Sainsbury Wellcome Centre develop novel experimental setup called Translocator, isolating fundamental elements of locomotion and motion-source separation. The team finds that individual cells in primary visual cortex use motor and vestibular signals to determine visual flow origin.
Researchers have discovered a critical link between a cholesterol byproduct and Parkinson's disease development in mice. The study highlights the role of 24-OHC in forming Lewy bodies and killing dopamine neurons, with potential therapeutic targets emerging as drugs that prevent its production.
Researchers analyzed data from three trials and found nerinetide provided a clinically significant benefit to patients. The findings suggest that treating early, fast, and administering the drug can lead to improved patient outcomes.
A new study published in Annals of Neurology found that lower concentrations of vitamin B12 in healthy, older adults led to signs of neurological and cognitive deficiency. These individuals showed slower processing speeds, brain lesions, and delayed responses to visual stimuli compared to those with higher B12 levels.
Emboa Medical creates a microstructured catheter called TRAP, which mimics a boa constrictor's teeth arrangement to grab onto blood clots without tearing them. The TRAP design has shown significant benefits in removing clots on the first attempt and improving outcomes for stroke patients.
Researchers have identified changes in brain rhythms that indicate seizure activity in Alzheimer's patients. High-frequency oscillations (HFOs) occur at rates two to three times higher in Alzheimer's patients than in cognitively normal individuals.
Harvard researchers have developed a silicon chip capable of recording small yet telltale synaptic signals from a large number of neurons. The chip has successfully mapped over 70,000 synaptic connections from approximately 2,000 rat neurons.
A new method allows for accurate measurement of blood-brain barrier permeability, revealing that many CNS drugs penetrate the barrier rapidly. The study found that plasma proteins play a crucial role in maintaining brain delivery of lipophilic agents.
A study published in PLOS Biology found that repeated stress in mice reduces their ability to perceive loud sounds, as measured in the auditory cortex. This altered brain processing is reflected in a behavioral task where stressed mice were more likely to report louder sounds as soft.
Researchers at Ben-Gurion University found that chronic stress changes how the brain processes sounds, with higher decibel levels needed to trigger similar responses. This effect may be driven by a type of inhibitory cell becoming more active under repeated stress.
A new study reveals that microglia can be reprogrammed from a tumor-promoting state to one that strengthens antitumor responses, reducing brain metastases growth and enhancing immunotherapy responses. Researchers identified a key signaling pathway that, when blocked, reverses the protumoral function of microglia.
Researchers discovered that a network of subcellular structures similar to those responsible for muscle contraction are also present in brain cells. These structures, called contact sites, play a crucial role in transmitting calcium signals that regulate neuronal signaling. The study provides new insights into the molecular mechanisms ...
Certain mouth bacteria may support better memory and attention, while others increase the risk of Alzheimer's disease. The study found that an imbalance between beneficial and harmful bacteria can reduce nitric oxide production, crucial for brain communication.
A study found clear differences in brain health between Hispanic and non-Hispanic White older adults, with Hispanic participants scoring lower on tests of memory, attention, and problem-solving despite similar mental health. Researchers emphasize the importance of considering social, economic, and cultural factors when developing progr...
A new study led by UCL researchers has found that the GLP-1 drug exenatide has no positive impact on movement, symptoms, or brain imaging in people with Parkinson's disease. The trial involved 194 participants and ran for 96 weeks, with no benefits shown in any of these areas.
Scientists from DZNE found that preventing brain inflammation may help treat Alzheimer's disease. The study, published in Immunity, suggests that inhibiting the NLRP3 inflammasome can reduce neuroinflammation and help microglia clear harmful amyloid-beta deposits.
Neuroscientists investigated how the brain implements flexibility in decision-making, revealing that it either reuses known neural pathways or develops new patterns. The findings help understand why some adaptations are more difficult than others, especially in social interactions and motor tasks.
Researchers at Lancaster University have developed a new method to detect Alzheimer's disease by analyzing changes in brain oxygenation dynamics and neuronal function. The study found that individuals with Alzheimer's disease exhibit altered respiratory frequency, which may be an early indicator of the condition.
A recent study found that Streptococcus anginosis, a common mouth bacteria, is abundant in the guts of people with acute stroke and linked to a worse prognosis. The researchers also discovered that levels of this bacteria were associated with increased mortality rates two years after stroke.
A new study found that empathy responses peak in young adulthood, with increased sensitivity to social pain. This development demonstrates that empathy strengthens as people age, but also accompanies reduced ratings of pain for others, highlighting the complexities of empathic responses.
A study of young adults found that heavy lifetime cannabis use is associated with negative outcomes on working memory tasks. These findings suggest potential long-lasting effects of cannabis use on brain function.
A study by TU Wien found that nerve stimulation is more effective when synchronized with the body's natural rhythms, particularly during systole and inspiration. This technology has potential for non-invasive treatment of chronic diseases.
Research at Turku PET Centre found elevated opioid neurotransmitter activity in anorexia patients' brains, linked to increased appetite regulation and emotional symptoms. The study suggests changes in brain function may explain the emotional symptoms and mood changes associated with anorexia nervosa.
A new study by researchers from the University of Waterloo and Texas Tech University found that teams with diverse expertise generate more unique proposals, but their ideas are often less useful compared to teams with shared expertise. The study used neuroimaging to measure how participants' brains responded during team collaboration.
A recent study published in Nature Medicine analyzed over 2 million veterans taking GLP-1RA medications, finding benefits to cognitive and behavioral health while revealing increased risks for pancreatitis and kidney conditions. The study also showed decreased risks of seizures, addiction, suicidal ideation, and neurocognitive disorders.
A new study demonstrates how fluorescent cholesterol probes can visualize cholesterol in live cells, revealing its role in amyloid plaque formation and cellular signaling. The novel probes have the potential to enhance our understanding of how cholesterol imbalances contribute to neurodegenerative disorders.
Zebrafish have pineal gland photoreceptors that detect color using parapinopsin 1 (PP1) protein. Two genes, Sagb and Arr3a, play a crucial role in the inactivation of PP1 based on light intensity, with Sagb taking over at higher intensities.
The Cognitive Neuroscience Society conference will feature keynote addresses, award lectures, and symposia on various topics in cognitive neuroscience. Researchers will present the latest findings on sleep, emotional experiences, brain connectivity, and more.
The project aims to improve the design of clinical trials for neurological conditions like stroke, Parkinson's disease, and vascular cognitive impairment and dementia. Community partners will facilitate academic and community partnerships for clinical trial development.
A study by the American Academy of Neurology found that older adults with Medicare insurance wait an average of over a month to see a neurologist. Wait times varied depending on the condition, with people with multiple sclerosis and Parkinson's disease facing longer delays.
A systematic literature search identified high-priority clinical actions for post-acute care, including early education, risk assessment, and mental health screening. Implementing these actions can improve the quality of care for non-hospitalized TBI patients.
A recent study has identified distinct features in two types of brain cells, intratelencephalic (IT) neurons and pyramidal tract (PT) neurons, which may affect their vulnerability to neurodevelopmental conditions. The research highlights the importance of understanding how these brain cells exchange information through their synapses.
A $16 million NIH program aims to identify barriers to equitable healthcare for individuals with Alzheimer's disease and related dementias. The research initiative will examine the relationships between healthcare providers and patients, focusing on provider-patient racial concordance and its impact on health outcomes.
A new Tulane University study suggests that the Mediterranean diet's brain-boosting benefits may work by changing the balance of bacteria in the gut. Researchers found that subjects following a Mediterranean diet developed distinctly different gut bacteria patterns compared to those eating a typical Western diet.
Researchers at Tel Aviv University discovered the brain actively prevents learning both types of memory, leading to confusion. The brain prioritizes one type of learning over the other using a strategy to resolve conflicts.
The American Academy of Neurology outlines 12 factors that influence a person's brain health at all stages of life. By discussing these factors with your neurologist or primary care physician, they can provide advice and resources to help you improve your brain health.
A new study from Oregon Health & Science University found that people who receive physical therapy earlier after a concussion tend to have better balance control and reduced reaction times. This can lead to improved outcomes and reduced risk of re-injury. Early intervention may enable the brain to return to a more normal state, compens...
Researchers at Cornell University have created mini virtual reality (VR) headsets called MouseGoggles, which allow mice to navigate virtual environments with greater immersion and accuracy. The technology has the potential to reveal insights into spatial navigation and memory function, shedding light on disorders like Alzheimer's disease.
A study published in PLOS Biology found that individuals with and without obesity prefer high-calorie foods, regardless of their taste or texture. The researchers used a large group of healthy volunteers to compare food preferences among three groups: individuals with obesity, post-bariatric surgery patients, and non-obese controls.
Scientists found that brain cells grown in space matured faster than those on Earth, but remained healthy, shedding light on potential neurological effects of space travel. The study also showed reduced inflammation and stress-related genes in microgravity-grown cells.
Researchers at Université de Montréal's CRCHUM discovered that inhibiting a key brain enzyme can reduce body weight and improve physical activity in mice. The study suggests that targeting specific neuronal pathways in the brain could be crucial for fighting obesity and metabolic disorders.
A meta-analysis of four randomized clinical trials found that endovascular therapy significantly reduces patient mortality and overall post-stroke disability for vertebrobasilar stroke patients. EVT is nearly 2½ times more likely to achieve a positive outcome compared to standard medical management.
Scripps Research scientists created an AI model called MovieNet that processes videos by mirroring brain processes, recognizing visual scenes and distinguishing subtle changes. This breakthrough has the potential to transform fields like medical diagnostics, autonomous driving and more.
Researchers at the University of Tokyo discover that the patterns of spontaneous activity and stimulus-evoked response are similar in lower visual areas of the cerebral cortex but gradually become independent as one moves to higher visual areas. This orthogonal relationship helps explain how sensory perception remains stable despite co...
Researchers will test the hypothesis that environmental manganese exposure is associated with the progression of Parkinson's symptoms and measure neuroinflammation in the brain using MRI scans. The study aims to inform environmental regulations for manganese worldwide and address an environmental justice concern.
A groundbreaking study reveals that macrophages within muscle spindles actively participate in motor control through fast neurotransmitter-mediated mechanisms. These immune cells help fine-tune muscle contractions, providing essential feedback to the nervous system and optimizing energy use during physical activity.
Dr. Seymour Reichlin's centennial celebration highlights his ongoing scientific impact, with recent collaborations yielding new insights into hormone therapies for cognitive enhancement and emotional homeostasis. His work has established neuroendocrinology as a distinct field, bridging neuroscience, endocrinology, and clinical medicine.
Scientists at the University of Texas at Austin and UCLA have created an e-tattoo that can measure brain activity using electroencephalography (EEG). The new method uses a camera to map the individual head's shape digitally, allowing for more precise sensor placement. This innovation could transform brain-computer interfaces, making th...
The American Heart Association warns hunters about the increased risk of heart attack and stroke due to exertion, cold temperatures, and excitement. Hunters should recognize symptoms, take breaks, and have a plan in case of emergencies. Learning Hands-Only-CPR can also save lives.
Researchers have discovered a specific type of body fat linked to abnormal proteins in the brain that are hallmarks of Alzheimer's disease. Higher levels of visceral fat were found to be associated with increased amyloid accumulation and higher PET levels of hallmark pathologic proteins.
Ken Perry, a UTA senior, has been recognized for his research on the connection between high-fat meals and cardiovascular health. He won two awards from the American Physiological Society for his work analyzing data collected from previous studies, which showed a correlation between high-fat consumption and changes in brain blood flow.
Researchers at ISTA and Columbia University developed a technique using adeno-associated viruses (AAVs) to track a frog's nervous system throughout its metamorphosis, shedding light on the neural circuit and behavior changes during this transition. The breakthrough can help usher amphibian neurobiology into a new era.
A team of scientists has pinpointed a critical neural circuit for female sexual rejection, revealing how the brain integrates signals to shape behavior. The ventromedial hypothalamus, specifically progesterone-sensitive neurons in the anterior VMH, play a crucial role in determining whether a female accepts or rejects mating attempts.
Knowing family health history is crucial for reducing heart attack and stroke risk. Experts recommend following Life's Essential 8 - five health behaviors and three health factors to lower genetic risks.