Brain

In the face of mounting evidence, doctors' leaders and government should take a stand and set clear guidelines on an activity that has so far eluded the scrutiny that other health issues attract, argues Dr Aric Sigman.

Children of all ages are watching more screen media than ever before, he says, and what is more, they are starting earlier and earlier.

Britain's children have regular access to an average of five different screens at home by the time they are 10 years old, in the form of TVs, games consoles, smart phones, laptops and tablets.

A new study provides evidence that gamblers interpret near-misses as frustrating losses rather than near-wins. This frustration stimulates the reward systems in the brain to promote continued gambling, according to Mike Dixon from the University of Waterloo in Canada, and his colleagues. This, in turn, may contribute to addictive gambling behavior. Their work is published online in Springer's Journal of Gambling Studies.

UNIVERSITY OF CALIFORNIA, BERKELEY'S HAAS SCHOOL OF BUSINESS –When Madeleine Albright became the first female U.S. Secretary of State, she led high-level negotiations between mostly male foreign government leaders. In 2009, comedian Bill Maher asked Albright if she ever flirted on the job and she replied, "I did, I did." Flirtatiousness, female friendliness, or the more diplomatic description "feminine charm" is an effective way for women to gain negotiating mileage, according to a new study by Haas School of Business Professor Laura Kray.

The National Center for Educational Statistics reported that only 73% of high school freshmen graduate within four years. For those students who continue their education at the collegiate level, slightly more than half (57%) earn a bachelor's degree and over 18% will leave college altogether. Although many factors can contribute to students' academic risk, negative emotions associated with learning—such as a lack of interest and engagement in their courses—could be a vital reason for students' disengagement, withdrawal, and failure in school.

AUSTIN, Texas — Depression and post-traumatic stress disorder are commonly associated with sexual assault, but a new study from The University of Texas at Austin shows that female victims suffer from a wide spectrum of debilitating effects that may often go unnoticed or undiagnosed.

A study from the University of Granada based on police surveys indicates that in domestic violence crimes in which the woman kills her abuser, if she is more attractive she is perceived as guiltier.

From a social psychology point of view, it has been noticed that physical attractiveness has an influence on how people are perceived by others in labour, academic and even legal fields. On the one hand, this creates the mental association of "what is beautiful is good". On the other hand though, when it comes to domestic violence the results are different.

A team of Canadian scientists and clinicians, led by Dr. Michael Hill of the Calgary Stroke Program at Foothills Medical Centre and University of Calgary's Hotchkiss Brain Institute (HBI), have demonstrated that a neuroprotectant drug, developed by Dr. Michael Tymianski at the Krembil Neuroscience Centre, located at the Toronto Western Hospital, protects the human brain against the damaging effects of stroke.

At the Swedish Armed Forces Interpreter Academy in the city of Uppsala, young people with a flair for languages go from having no knowledge of a language such as Arabic, Russian or Dari to speaking it fluently in the space of 13 months. From morning to evening, weekdays and weekends, the recruits study at a pace unlike on any other language course.

NEW YORK, NY-October 9, 2012 – A new National Institutes of Health (NIH)-funded study conducted at Baruch College and published in Obesity found that overweight and obese adults who participated in three different weight loss treatments, all involving intensive, multi-component counseling delivered in groups, lost significant weight after 48 weeks whether the treatment was led by a health professional or by someone who had previous weight loss success.

McGill researchers have identified a small region in the genome that conclusively plays a role in the development of psychiatric disease and obesity. The key lies in the genomic deletion of brain-derived neurotrophic factor, or BDNF, a nervous system growth factor that plays a critical role in brain development.

CHICAGO – Although some girls benefited from a program that moved families from high-poverty areas to low-poverty areas, boys and adolescents from families with preexisting health-related vulnerabilities did not appear to experience mental health benefits, according to a report published Online First by Archives of General Psychiatry, a JAMA Network publication.

Toronto – October 3, 2012. By the time our children reach kindergarten their learning and developmental patterns are already taking shape, as is a trajectory for their future health. Now, for the first time, scientists have amassed a large collection of research that looks "under the skin", to examine how and why experiences interact with biology starting before birth to affect a life course.

UCLA researchers have for the first time measured the activity of a brain region known to be involved in learning, memory and Alzheimer's disease during sleep. They discovered that this part of the brain behaves as if it's remembering something, even under anesthesia, a finding that counters conventional theories about memory consolidation during sleep.

SAN FRANCISCO, CA—October 8, 2012—Using animal models, scientists at the Gladstone Institutes have discovered how a protein deficiency may be linked to frontotemporal dementia (FTD)—a form of early-onset dementia that is similar to Alzheimer's disease. These results lay the foundation for therapies that one day may benefit those who suffer from this and related diseases that wreak havoc on the brain.

Swedish researchers at Uppsala University have, together with Brazilian collaborators, discovered a new group of nerve cells that regulate processes of learning and memory. These cells act as gatekeepers and carry a receptor for nicotine, which can explain our ability to remember and sort information.

The discovery of the gatekeeper cells, which are part of a memory network together with several other nerve cells in the hippocampus, reveal new fundamental knowledge about learning and memory. The study is published today in Nature Neuroscience.