The Psychology of First-Person-Shooter Games

“If you look at it in terms of our evolution, most of us have office jobs. We’re in front of the computer all day. We don’t have to go out and fight a tiger or a bear to find our dinner. But it’s still hardwired in humans. Our brain craves this kind of interaction, our brain wants to be stimulated. We miss this adrenaline-generating decision-making.”

The most interesting explanation yet I've heard for the violence in video games.