The New York Times:
The young men who opened fire at Columbine High School, at the movie theater in Aurora, Colo., and in other massacres had this in common: they were video gamers who seemed to be acting out some dark digital fantasy. It was as if all that exposure to computerized violence gave them the idea to go on a rampage — or at least fueled their urges.
Many similar studies have found the same thing: A dose of violent gaming makes people act a little more rudely than they would otherwise, at least for a few minutes after playing.
It is far harder to determine whether cumulative exposure leads to real-world hostility over the long term. Some studies in schools have found that over time digital warriors get into increasing numbers of scrapes with peers — fights in the schoolyard, for example. In a report published last summer, psychologists at Brock University in Ontario found that longer periods of violent video game playing among high school students predicted a slightly higher number of such incidents over time.
Read the whole story: The New York Times