A recent brain scan study of gamers playing a violent games is reported to conclude that the brain treats on-screen violence as real and that these games train the brain to react in a certain pattern.
The study was described in New Scientist and commented on in This Is London.
From those brief descriptions it all seems remarkably vague. Also, New Scientist is hardly a scientific journal in itself making it odd that the study was “published” there.
More coverage from BBC – it now seems that the study is not about game violence, but about aggression in itself. The game part, according to BBC, is incidental. Interesting news angle, in that case.