http://news.bbc.co.u...lth/8471182.stm
"If you find video games a struggle, it could be to do with the size of certain parts of your brain, a study suggests.
There is broad acceptance of a link between brain size and intelligence.
However it remains a complicated picture. Within the animal kingdom some smaller brains appear superior to many larger ones: the monkey's compared with the horse, for instance, or the human and the elephant.
But there are certain parts of the brain which can be disproportionately larger, and this may explain some differences in cognitive ability - between individuals as well as species.
A multi-disciplinary team from the University of Illinois, the University of Pittsburgh and Massachusetts Institute of Technology recruited 39 adults - 10 men, 29 women - who had spent less than three hours each week playing video games in the previous two years.
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But those players who ultimately performed best on the game in which priorities changed had larger sections deep in the centre of the brain, known as the caudate and putamen.
"This makes sense, because these areas have been linked to learning procedures and new skills, as well as adapting to changing environments. These people could do a number of things at once. Think of it like driving a car, as well as looking at the road, you're tampering with your GPS, and talking to your passengers," says Prof Arthur Kramer of the University of Illinois.
