desensitisation

The effect that violent films and games have on our minds, and the implications for their place in society, has been a source of much heated debate. Now, a new study looks set to fan the flames even further. Several studies have found that violent media can desensitise people to real acts of violence, but Brad Bushman from the University of Michigan and Craig Anderson from Iowa State University have produced the first evidence that this can actually change a person's behaviour, affecting their decisions to help others in need. Using professional actors, they found that after 20 minutes of…