Here's a true story: a few years ago, given an Xbox 360 for testing purposes, I went to the Gamestop to get a new game. I like games, but I don't like games with guns or sports, because I don't particularly like guns or sports in real life, either. The guy at the Gamestop was absolutely flummoxed by my request for an Xbox game with neither. He ended up recommending the game version of the movie G-Force, which is a movie for children featuring talking CGI guinea pigs.
Violence in games is widespread, largely because violence triggers certain pleasure points in our brains. But what if we could study the brain to figure out exactly where and why--and what else could produce the same reaction?