Brain

• Alcohol treatment interventions work best when patients understand and are actively involved in the process.
• A first-of-its-kind study looks at the interactive effects of smoking status and age on neurocognition in one-month-abstinent alcohol dependent (AD) individuals in treatment.
• Results show that AD individuals who currently smoke have more problems with memory, ability to think quickly and efficiently, and problem-solving skills than those who do not smoke, effects which seem to become greater with increasing age.

(SACRAMENTO, Calif.) — Working with lab mice models of multiple sclerosis (MS), UC Davis scientists have detected a novel molecular target for the design of drugs that could be safer and more effective than current FDA-approved medications against MS.

DETROIT – If you're a left-brain thinker, chances are you use your right hand to hold your cell phone up to your right ear, according to a newly published study from Henry Ford Hospital in Detroit.

The study – to appear online in JAMA Otolaryngology-Head & Neck Surgery – shows a strong correlation between brain dominance and the ear used to listen to a cell phone. More than 70% of participants held their cell phone up to the ear on the same side as their dominant hand, the study finds.

A new tool being developed by UT Arlington assistant professor of physics could help scientists map and track the interactions between neurons inside different areas of the brain.

TORONTO, May 16, 2013—Men who are heavy drinkers and homeless for long periods of time have 400 times the number of head injuries as the general population, according to a new study by researchers who said they were shocked by their findings.

These men have 170 times as many severe head injuries as the general population and 300 times as many injuries that cause bleeding in the brain.

The study by Dr. Tomislav Svoboda, a family physician at St. Michael's Hospital, appears online in Emergency Medicine Journal.

In the future, if you want to improve your ability to manipulate numbers in your head, you might just plug yourself in. So say researchers who report in the Cell Press journal Current Biology on May 16 on studies of a harmless form of brain stimulation applied to an area known to be important for math ability.

"With just five days of cognitive training and noninvasive, painless brain stimulation, we were able to bring about long-lasting improvements in cognitive and brain functions," says Roi Cohen Kadosh of the University of Oxford.

In our interaction with our environment we constantly refer to past experiences stored as memories to guide behavioral decisions. But how memories are formed, stored and then retrieved to assist decision-making remains a mystery. By observing whole-brain activity in live zebrafish, researchers from the RIKEN Brain Science Institute have visualized for the first time how information stored as long-term memory in the cerebral cortex is processed to guide behavioral choices.

Philadelphia, PA, May 16, 2013 – The relationship between the heritable risk for schizophrenia and low intelligence (IQ) has not been clear. Schizophrenia is commonly associated with cognitive impairments that may cause functional disability. There are clues that reduced IQ may be linked to the risk for developing schizophrenia. For example, reduced cognitive ability may precede the onset of schizophrenia symptoms. Also, these deficits may be present in healthy relatives of people diagnosed with schizophrenia.

A study led by researchers from Plymouth University Peninsula Schools of Medicine and Dentistry has for the first time revealed how the loss of a particular tumour suppressing protein leads to the abnormal growth of tumours of the brain and nervous system.

The study is published in Brain: A Journal of Neurology.

PROVIDENCE, R.I. [Brown University] — With obesity reaching epidemic levels in some parts of the world, scientists have only begun to understand why it is such a persistent condition. A study in the Journal of Biological Chemistry adds substantially to the story by reporting the discovery of a molecular chain of events in the brains of obese rats that undermined their ability to suppress appetite and to increase calorie burning.

Long-term treatment of attention deficit/hyperactivity disorder (ADHD) with certain stimulant medications may alter the density of the dopamine transporter, according to research published May 15 in the open access journal PLOS ONE by Gene-Jack Wang and colleagues from Brookhaven National Laboratory and the intramural program at NIH.

People in the military who suffer more than one mild traumatic brain injury face a significantly higher risk of suicide, according to research by the National Center for Veterans Studies at the University of Utah.

A survey of 161 military personnel who were stationed in Iraq and evaluated for a possible traumatic brain injury – also known as TBI – showed that the risk for suicidal thoughts or behaviors increased not only in the short term, as measured during the past 12 months, but during the individual's lifetime.

When the brain's primary "learning center" is damaged, complex new neural circuits arise to compensate for the lost function, say life scientists from UCLA and Australia who have pinpointed the regions of the brain involved in creating those alternate pathways — often far from the damaged site.

Imagine what Paula Spurlock must have been going through. Shortly after having a hip replaced in 2011, the trouble started. "I had horrible itching, really bad migraines and intense pain throughout my body," she said. "I couldn't take it. Every single thing in me itched."

After many months and several trips to specialists, Spurlock was told it could be anything from food allergies to her medication. But no matter what she changed, the symptoms persisted and Spurlock resigned herself to a life of misery. "I just kind of thought that's what life was going to be like," she said.

Scientists from Royal Holloway University have found that when white Caucasians are under the illusion that they have a dark skin, their racial bias changes in a positive way.

In the study that was funded by the European Research Council and published today in Cognition, the team used the tried and tested Rubber Hand Illusion, where participants are asked to look at a fake hand being touched, while at the same time, the experimenter touches the participants' own hand which is hidden out of view.