'We also found that amount of time spent playing video games in the past was associated with lower academic grades in college.'

'We found that students who reported playing more violent video games in junior and high school engaged in more aggressive behavior,' said lead author Anderson, of Iowa State University. They also reported their video game playing habits. The first study involved 227 college students who completed a measure of trait aggressiveness and reported their actual aggressive behaviors (delinquency) in the recent past. 'The other study reveals that even a brief exposure to violent video games can temporarily increase aggressive behavior in all types of participants.' 'One study reveals that young men who are habitually aggressive may be especially vulnerable to the aggression-enhancing effects of repeated exposure to violent games,' said psychologists Craig A. Furthermore, violent video games may be more harmful than violent television and movies because they are interactive, very engrossing and require the player to identify with the aggressor, say the researchers. WASHINGTON - Playing violent video games like Doom, Wolfenstein 3D or Mortal Kombat can increase a person's aggressive thoughts, feelings and behavior both in laboratory settings and in actual life, according to two studies appearing in the April issue of the American Psychological Association's (APA) Journal of Personality and Social Psychology.

The medium game length