I always thought violent video games had the opposite effect of aggression - desensitization. At the beginning of playing "The Last of Us", I sort of felt bad w

I always thought violent video games had the opposite effect of aggression - desensitization. At the beginning of playing "The Last of Us", I sort of felt bad whenever a (non-zombie) human died (either by my hands or part of the story). I especially felt bad when I made a 14 year old girl kill someone. But by the end I remorselessly hunted and executed every human I came across no matter which character I was. Of course, that didn't translate to any real life loss of empathy (I don't think), but it was interesting how quickly the game desensitized my regard of fictional humans so that I stopped seeing them as anything of value but rather an enemy/monster to be unquestioningly destroyed.