Brain

Lack of sleep increases risk of failure in school

A new Swedish study shows that adolescents who suffer from sleep disturbance or habitual short sleep duration are less likely to succeed academically compared to those who enjoy a good night's sleep. The results have recently been published in the journal Sleep Medicine.

In a new study involving more than 20,000 adolescents aged between 12 and 19 from Uppsala County, researchers from Uppsala University demonstrate that reports of sleep disturbance and habitual short sleep duration (less than 7 hours per day) increased the risk of failure in school.

Brain wave may be used to detect what people have seen, recognize

Brain activity can be used to tell whether someone recognizes details they encountered in normal, daily life, which may have implications for criminal investigations and use in courtrooms, new research shows.

Video blinds us to the evidence, NYU, Yale study finds

Where people look when watching video evidence varies wildly and has profound consequences for bias in legal punishment decisions, a team of researchers at New York University and Yale Law School has found. This study raises questions about why people fail to be objective when confronted with video evidence.

Presence or absence of early language delay alters anatomy of the brain in autism

A new study led by researchers from the University of Cambridge has found that a common characteristic of autism – language delay in early childhood – leaves a 'signature' in the brain. The results are published today (23 September) in the journal Cerebral Cortex.

Scientists seen as competent but not trusted by Americans

PRINCETON, N.J.—If scientists want the public to trust their research suggestions, they may want to appear a bit "warmer," according to a new review published by Princeton University's Woodrow Wilson School of Public and International Affairs.

The review, published in the Proceedings of the National Academy of Sciences (PNAS), shows that while Americans view scientists as competent, they are not entirely trusted. This may be because they are not perceived to be friendly or warm.

We drink more alcohol on gym days

  • Thursdays to Sundays are when people both exercise more and drink more
  • Study used smartphones to record daily alcohol intake and physical activity
  • Findings differ from past research on physical activity and exercise

CHICAGO --- A new Northwestern Medicine® study finds that on days when people exercise more -- typically Thursdays to Sundays -- they drink more alcohol, too.

This is the only study to use smartphone technology and a daily diary approach for self-reporting physical activity and alcohol use.

Compound from hops aids cognitive function in young animals

CORVALLIS, Ore. – Xanthohumol, a type of flavonoid found in hops and beer, has been shown in a new study to improve cognitive function in young mice, but not in older animals.

The research was just published in Behavioral Brain Research by scientists from the Linus Pauling Institute and College of Veterinary Medicine at Oregon State University. It's another step toward understanding, and ultimately reducing the degradation of memory that happens with age in many mammalian species, including humans.

Brainwave test could improve autism diagnosis and classification

September 22, 2014 – (BRONX, NY) – A new study by researchers at Albert Einstein College of Medicine of Yeshiva University suggests that measuring how fast the brain responds to sights and sounds could help in objectively classifying people on the autism spectrum and may help diagnose the condition earlier. The paper was published today in the online edition of the Journal of Autism and Developmental Disabilities.

University of Chicago neuroscientists challenge long-held understanding of the sense of touch

Different types of nerves and skin receptors work in concert to produce sensations of touch, University of Chicago neuroscientists argue in a review article published Sept. 22, 2014, in the journal Trends in Neurosciences. Their assertion challenges a long-held principle in the field—that separate groups of nerves and receptors are responsible for distinct components of touch, like texture or shape. They hope to change the way somatosensory neuroscience is taught and how the science of touch is studied.

Obesity and stress pack a double hit for health

If you're overweight, you may be at greater risk for stress-related diseases like type 2 diabetes, cardiovascular disease and cancer, according to a new study by Brandeis University.

It's long known that psychological stress can trigger biological responses similar to the effects of illness or injury, including inflammation. While normal inflammation is an important part of our body's healing response, runaway inflammation can contribute to chronic and life-threatening diseases.

Neurons express 'gloss' using 3 perceptual parameters

Japanese researchers showed monkeys a number of images representing various glosses and then they measured the responses of 39 neurons by using microelectrodes. They found that a specific population of neurons changed the intensities of the responses linearly according to either the contrast-of-highlight, sharpness-of-highlight, or brightness of the object. This shows that these 3 perceptual parameters are used as parameters when the brain recognizes a variety of glosses. They also found that different parameters are represented by different populations of neurons.

A two-generation lens: Current state policies fail to support families with young children

September 19, 2014 -- Recent two-generation approaches to reducing poverty that help children and their parents are receiving increasing attention from researchers, advocates, and foundations. By combining education and training for parents to enable them to move to jobs that offer a path out of poverty with high-quality early care and education for children, these programs aim to improve the life opportunities of both.

Some concussion education more useful than others, parents say

ANN ARBOR, Mich. – Many parents whose kids participate in athletics will be asked to sign a waiver about concussion education, but that's not enough to ensure parents are confident about handling the injury, according to a new University of Michigan C.S. Mott Children's Hospital National Poll on Children's Health.

In the poll, about half of the 912 parents of middle and high school children surveyed reported participation in some type of concussion education:

Blood test may help determine who is at risk for psychosis

A study led by University of North Carolina at Chapel Hill researchers represents an important step forward in the accurate diagnosis of people who are experiencing the earliest stages of psychosis.

Psychosis includes hallucinations or delusions that define the development of severe mental disorders such as schizophrenia. Schizophrenia emerges in late adolescence and early adulthood and affects about 1 in every 100 people. In severe cases, the impact on a young person can be a life compromised, and the burden on family members can be almost as severe.

Evidence supports deep brain stimulation for obsessive-compulsive disorder

September 22, 2014 – Available research evidence supports the use of deep brain stimulation (DBS) for patients with obsessive-compulsive disorder (OCD) who don't respond to other treatments, concludes a review in the October issue of Neurosurgery, official journal of the Congress of Neurological Surgeons (CNS).