Video Game-Brain Functioning Reversibility Study

1. Young adults who are exposed to 7-10 days of play of violent video games will show reduced activation in certain regions of the dorsolateral prefrontal cortex and anterior cingulate cortex. 2. Young adults who are exposed to 7-10 days of violent video games will show increased activation in regions of the amygdala. 3. Young adults who abstain from violent video games for a week, after 7-10 days of play of violent video games, will show increased activation of regions in the dorsolateral prefrontal cortex and anterior cingulate cortex and decreased activation of the amygdala, on pre-post fMRI and compared to young adults who continue to play violent video games. 4. Young adults who complete a computerized attention-training program after 7-10 days of violent video games will show increased activation of regions in the dorsolateral prefrontal cortex and anterior cingulate cortex and decreased activation of the amygdala, on pre-post fMRI and compared to young adults who continue to play violent video games.