When video games get problematic so do smoking, drug use and aggression

A new study on gaming and health in adolescents, conducted by researchers at Yale School of Medicine, found some significant gender differences linked to gaming as well as important health risks associated with problematic gaming. Published today in the journal Pediatrics, the study is among the first and largest to examine possible health links to gaming and problematic gaming in a community sample of adolescents.

Study: Teleworkers more satisfied than office-based employees

Employees who telecommute the majority of the work week are more satisfied with their jobs compared to those working mostly in the office because working remotely alleviates more stress than it creates, according to a new study by a communication researcher at the University of Wisconsin-Milwaukee (UWM).

Prescribed medicines are responsible for over 3 percent of road traffic crashes in France

In France, the effect that all medicines have on driving performance has been classified into 4 levels of risk, from level 0 (no or negligible risk) to level 3 (major risk) and according to a study by Ludivine Orriols, from Université Victor Segalen, Bordeaux, France, and colleagues, level 2 and 3 medicines are responsible for over 3% of road traffic crashes in France.

Disruptive behaviour disorders in male teenagers associated with increased risk of road crashes

Disruptive behaviour disorders in male teenagers, such as attention deficit hyperactivity disorder, conduct disorder, and oppositional defiant disorder are associated with about a one-third increase in the risk of being seriously injured in a road traffic crash – either as driver or pedestrian. This increase is similar to the increased relative risk found for patients treated for epilepsy.

Neural subtypes act like a seesaw to control level of fear output from brain’s amygdala

In this week’s issue of the journal Nature, a research team led by scientists at the California Institute of Technology (Caltech) has taken an important step toward understanding just how this kickoff occurs by beginning to dissect the neural circuitry of fear. In their paper, these scientists—led by David J. Anderson, the Benzer Professor of Biology at Caltech and a Howard Hughes Medical Institute investigator—describe a microcircuit in the amygdala that controls, or “gates,” the outflow of fear from that region of the brain.

Recommendation letters may be costing women jobs, promotions

A recommendation letter could be the chute in a woman’s career ladder, according to ongoing research at Rice University. The comprehensive study shows that qualities mentioned in recommendation letters for women differ sharply from those for men, and those differences may be costing women jobs and promotions in academia and medicine.

X-Rays reveal 3-D structural image of brain receptor

Researchers recently mapped the complete structure of a glutamate receptor, a key communications port in brain cells. Scientists at Oregon Health and Science University (OHSU) in Portland pieced together the three-dimensional image of the protein by bombarding it with X-rays, a technology called X-ray crystallography. Knowledge about the receptor’s form is expected to yield insights into its function in the nervous system.

Ziprasidone and Olanzapine carry no difference in risk of mortality

A study published online this month in the American Journal of Psychiatry in advance of print publication in February 2011 showed no difference in nonsuicide mortality between people taking ziprasidone and another second-generation anti-psychotic in real-world use.

Voluntary cooperation and monitoring lead to success

Many imminent problems facing the world today, such as deforestation, overfishing, or climate change, can be described as commons problems. The solution to these problems requires cooperation from hundreds and thousands of people. Such large scale cooperation, however, is plagued by the infamous cooperation dilemma. According to the standard prediction, in which each individual follows only his own interests, large-scale cooperation is impossible because free riders enjoy common benefits without bearing the cost of their provision.

Pain gene common to flies, mice and humans

They show that one of those genes in particular has a long evolutionary history, as evidenced by the fact that it plays a role in pain sensing in flies, mice and humans. At least in mice, the newly described gene is also linked to a condition known in humans as synesthesia, in which one sensory experience triggers the perception of another sense.