Brain

A new study by researchers at UT Dallas' Center for Vital Longevity, Duke University, and the University of Michigan has found that the strength of communication between the left and right hemispheres of the brain predicts performance on basic arithmetic problems. The findings shed light on the neural basis of human math abilities and suggest a possible route to aiding those who suffer from dyscalculia-- an inability to understand and manipulate numbers.

This release is available in German.

Pretend play can be fun for preschool children, but a new University of Virginia study, published in a recent online edition of the journal Psychological Bulletin, finds that it is not as crucial to a child's development as currently believed. Pretend play is any play a child engages in, alone, with playmates, or with adults, that involves uses of the imagination to create a fantasy world or situation, such as making toy cars go "vrrooooom" or making dolls talk.

A popular marketing ploy with junk foods and other indulgent table fare can be an equally effective tool for promoting healthier eating in school cafeterias.

"Nutritionists and school lunch planners can turn the tables on children's poor eating habits by adopting the same 'branding' tactic used by junk food marketers," said Brian Wansink, an expert on the subtle cues that affect people's eating habits and professor of marketing at the Dyson School of Applied Economics and Management at Cornell University.

URBANA, Ill. — Like a melody that keeps playing in your head even after the music stops, researchers at the University of Illinois's Beckman Institute have shown that the beat goes on when it comes to the human visual system.

CHAMPAIGN, lll. — The rhythm of life is driven by the cycles of day and night, and most organisms carry in their cells a common, (roughly) 24-hour beat. In animals, this rhythm emerges from a tiny brain structure called the suprachiasmatic nucleus (SCN) in the hypothalamus. Take it out of the brain and keep it alive in a lab dish and this "brain clock" will keep on ticking, ramping up or gearing down production of certain proteins at specific times of the day, day after day.

CORAL GABLES, FL (August 28, 2012) -- As Hurricane Isaac nears the Gulf Coast, one may wonder what the impact of natural disasters are on children. Who is most at risk for persistent stress reactions? How can such youth be identified and assisted in the aftermath of a destructive storm?

CORAL GABLES, FL (August 28, 2012)—Parents of young children hope for a successful kindergarten experience that will set their youngsters on the right path of their educational journey. Some worry about their kids not adapting to the school environment, particularly when the children are talkative and overactive. Yet, a new study by the University of Miami (UM) shows that overly shy preschool children are at greater academic risk than their chatty and boisterous peers.

Tampa, FL (Aug. 28, 2012) -- A new study has found a gene that appears to make women happy, but it doesn't work for men. The finding may help explain why women are often happier than men, the research team said.

Scientists at the University of South Florida (USF), the National Institutes of Health (NIH), Columbia University and the New York State Psychiatric Institute reported that the low activity form of the gene monoamine oxidase A (MAOA) is associated with higher self-reported happiness in women. No such association was found in men.

By modifying the rate at which chemical reactions take place, nanoparticle catalysts fulfill myriad roles in industry, the biomedical arena and everyday life. They may be used for the production of polymers and biofuels, for improving pollution and emission control devices, to enhance reactions essential for fuel cell technology and for the synthesis of new drugs. Finding new and more effective nanoparticle catalysts to perform these useful functions is therefore vital.

KINGSTON, R.I. – August 27, 2012 -- New research by a University of Rhode Island professor suggests that the length of human pregnancy is limited primarily by a mother's metabolism, not the size of the birth canal. The research, published in the Proceedings of the National Academy of Sciences the week of August 27, challenges the long-held notion of an evolutionary trade-off between childbirth and a pelvis adapted for walking upright.

DURHAM, N.C. -- The persistent, dependent use of marijuana before age 18 has been shown to cause lasting harm to a person's intelligence, attention and memory, according to an international research team.

AMES, Iowa -- As president of the International Society for Research on Aggression (IRSA) and with consent of the organization's elected council, Craig Anderson appointed an international Media Violence Commission last December to prepare a public statement on the known effects of media violence exposure, based on the current state of scientific knowledge. The Iowa State University Distinguished Professor of psychology appointed 12 IRSA researchers to the commission, including Douglas Gentile, an ISU associate professor of psychology.

MBL, WOODS HOLE, MA-- Squid's colorful, changeable skin enables the animal--and their close relatives, cuttlefish and octopus--to display extraordinary camouflage, the speed and diversity of which is unmatched in the animal kingdom.

But how squid control their skin's iridescence, or light-reflecting property, which is responsible for the animal's sparkly rainbow of color, has been unknown.

Munich, Germany – Spinal cord stimulation improves heart function and could become a novel treatment option for heart failure, according to research presented at the ESC Congress 2012 today, August 25, by Professor Hung-Fat Tse from Hong Kong.