Brain

Madagascar: Fossil skull analysis offers clue to mammals' evolution

AMHERST, Mass. – The surprise discovery of the fossilized skull of a 66- to 70-million-year-old, groundhog-like creature on Madagascar has led to new analyses of the lifestyle of the largest known mammal of its time by a team of specialists including biologist Elizabeth Dumont at the University of Massachusetts Amherst, an expert in jaw structure and bite mechanics.

Sustainable co-existence with wildfire recognizes ecological benefits, human needs

CHICAGO (November 5, 2014) – When wildfire and people intersect, it is often in the wildland-urban interface, or WUI, a geography where homes, roads and trails intermix with fire-prone vegetation. In an article published Thursday in the journal Nature, U.S. Forest Service scientist Sarah McCaffrey and her colleagues advocate for an approach to wildfire management that reflects ecological science as well as research on the human dimensions of wildfire and fire management.

Betting on brain research

Despite great advances in understanding how the human brain works, psychiatric conditions, neurodegenerative disorders, and brain injuries are on the rise. Progress in the development of new diagnostic and treatment approaches appears to have stalled. In a special issue of the Cell Press journal Neuron, experts look at the challenges associated with "translational neuroscience," or efforts to bring advances in the lab to the patients who need them.

High-fat diet postponing brain aging

New Danish-led research suggests that signs of brain aging can be postponed in mice if placed on a high-fat diet. In the long term, this opens the possibility of treatment of children suffering from premature aging and patients with Alzheimer's and Parkinson's disease. The research project is headed by the Center for Healthy Aging, University of Copenhagen and the National Institute of Health.

Our brain dissociates emotional response from explicit memory in fearful situations

Researchers at the Cognition and Brain Plasticity group of the Bellvitge Biomedical Research Institute (IDIBELL) and the University of Barcelona have been tracking the traces of implicit and explicit memories of fear in human. The study has been published in the journal Neurobiology of Learning and Memory and describes how in a context of fear, our brain differently encodes contextual memory of a negative event (the place, what we saw...) and emotional response associated.

Vanderbilt researchers explore links between grammar, rhythm

A child's ability to distinguish musical rhythm is related to his or her capacity for understanding grammar, according to a recent study from a researcher at the Vanderbilt Kennedy Center.

Reyna Gordon, Ph.D., a research fellow in the Department of Otolaryngology and at the Vanderbilt Kennedy Center, is the lead author of the study that was published online recently in the journal Developmental Science. She notes that the study is the first of its kind to show an association between musical rhythm and grammar.

VTT develops a simple but extremely sensitive magnetometer

VTT Technical Research Centre of Finland has developed an innovative magnetometer that can replace conventional technology in applications such as neuroimaging, mineral exploration and molecular diagnostics. Its manufacturing costs are between 70 and 80 per cent lower than those of traditional technology, and the device is not as sensitive to external magnetic fields as its predecessors. The design of the magnetometer also makes it easier to integrate into measuring systems.

Study shows benefits of being fat (but not too fat) for deep-diving elephant seals

Researchers using a new type of tracking device on female elephant seals have discovered that adding body fat helps the seals dive more efficiently by changing their buoyancy.

Oregon research team scores with 'The Concussion Playbook'

A University of Oregon researcher wants those "R" words to resonate among young athletes. They are key terms used in an online educational tool designed to teach coaches, educators, teens and parents about concussions.

Brain 101: The Concussion Playbook successfully increased knowledge and attitudes related to brain injuries among students and parents in a study that compared its use in 12 high schools with the usual care practices of 13 other high schools during the fall 2011 sports season. The findings are online ahead of print in the Journal of Adolescent Health.

Blocking mitochondrial fission: An effective treatment for Parkinson's disease?

A study led by a researcher from Plymouth University in the UK, has discovered that the inhibition of a particular mitochondrial fission protein could hold the key to potential treatment for Parkinson's Disease (PD).

The findings of the research are published today, 5th November 2014, in Nature Communications.

PD is a progressive neurological condition that affects movement. At present there is no cure and little understanding of why some people get the condition. In the UK one on 500 people, around 127,000, have PD.

Gene 'switches' could predict when breast cancers will spread to the brain

SCIENTISTS have found a pattern of genetic 'switches' – chemical marks that turn genes on or off - that are linked to breast cancer's spread to the brain, according to research* presented at the National Cancer Research Institute Cancer Conference in Liverpool today (Wednesday).

The researchers, based at the University of Wolverhampton, studied 24 breast cancers that had spread to the brain, along with samples from the original breast tumour, and found a handful of genes with faulty switches.

Oxytocin levels in blood, cerebrospinal fluid are linked, Stanford study finds

For years, scientists have debated how best to assess brain levels of oxytocin, a hormone implicated in social behaviors. Now, researchers at the Stanford University School of Medicine have found the first direct evidence in children that blood oxytocin measurements are tightly linked to levels of oxytocin in cerebrospinal fluid, which bathes the brain.

Low oxytocin levels in blood and CSF are both correlated to high anxiety levels, the research also showed. The findings will be published online Nov. 4 in Molecular Psychiatry.

New insight into the neuroscience of choking under pressure

Everyone knows the scene: a basketball player at the free throw line, bouncing the ball as he concentrates on the basket. It's a tight game, and his team needs this point. He regularly makes baskets from much farther away while avoiding defenders, but now, when all is calm, he chokes and misses the basket, and his team loses. Recent research from The Johns Hopkins University suggests that in situations like this, performance depends on two factors: the framing of the incentive in terms of a loss or a gain, and a person's aversion to loss.

Long-acting anti-meth treatment demonstrates protective benefits for meth addiction

San Diego — A recently developed Adeno-Associated Virus (AAV)-based medication has the potential to offer substantial protective effects for patients attempting to cease methamphetamine use. This research is being presented at the 2014 American Association of Pharmaceutical Scientists (AAPS) Annual Meeting and Exposition, the world's largest pharmaceutical sciences meeting, in San Diego, Nov. 2-6.

Autism spectrum disorder: 10 tips guidance article

Washington D.C., November 4, 2014 – A Clinical Perspectives article published in the November 2014 issue of the Journal of the American Academy of Child and Adolescent Psychiatry proposes a tool to empower stakeholders, guide caregivers, and provide a rationale for advocates, when considering the systems of support offered to people with an autism spectrum disorder (ASD).