The impact of gaming on the personality of the players is still a controversy. However, according to researchers at the University of Leiden at least there are good effects to be had while playing the game.
The research involves a number of respondents were divided into two groups, one of which is a group who regularly play FPS games at least 5 hours a week. And the other group had never played any games.
From the results of the study, a group that actively playing FPS games apparently have short-term memory is better than the other group.