the eye of Nova's mind

I honestly think the first article is putting the cart before the horse. I sometimes think scientists forget that our brain chemistry clearly changes with our behavior and mood, meaning if someone "isn't all that into games" for, say, reasons of societal expectation or disinterest in games in general, the chemical and electric activity will reflect that. In which case, you're really just experimenting to prove they're tied together, which is not news. Know what I mean?