"After playing a violent video game, these adolescents had an increased activity in the amygdala, which is involved in emotional arousal," said lead researcher Dr. Vincent Mathews, professor of radiology at Indiana University School of Medicine. "At the same time, they had decreases in activity in parts of the brain which are involved in self-control," he added.
The video game findings were presented in Chicago at the annual meeting of the Radiological Society of North America.
For more on children and video games, visit the Kaiser Family Foundation.
SOURCES: Peter Fischer, Ph.D., assistant professor, psychology, Ludwig-Maximilians University, Munich, Germany; David S. Bickham, Ph.D., research scientist, Harvard School of Public Health Center on Media and Child Health; March 2007, Journal of Experimental Psychology: Applied