Researchers at the US National Institute of Neurological Disorders and Stroke in Bethesda, Maryland used a medical scanner to investigate the brain activity of 22 boys aged between 14 and 17 while they viewed four-second video clips of violent scenes taken from 60 different videos.
They found that the more the boys were exposed to violent videos, the less emotionally sensitive they became to the violence. Dr Jordan Grafman said that the study suggests that exposure to violent videos will make an adolescent more accepting of violence, and more likely to commit aggressive acts.
I wonder how much the research cost. I’m not saying it has no relevance. But since it is blindingly obvious to anyone with common sense that watching violent videos encourages violence in some people, I do wonder if the money (and the time and energy) could have been better spent.
I mention elsewhere that I once read about research which showed that people tend to fall asleep when they are bored. They could have saved a lot of time, money and energy by interviewing some preachers!