my god, this is all a bit worrying. was waiting for someone to come out with some educated facts like this

http://news.bbc.co.uk/1/hi/technology/7564152.stm

"The technology is creating an environment that is answer rich, but we're question poor"

But it's more about why ritalin is so popular...

"Could it be, and this is just a suggestion which I think we should look into, could it be if a small child is sitting in front of a screen pressing buttons and getting reactions quickly for many hours, they get used to and their brains get used to rapid responses?" she said.

If children do not have stories read to them and have little practice of concentrating for long periods this could effect how they handle the sedate pace of school life, said Baroness Greenfield.

She asked: "Could it be that they then have to sit still for half an hour and of course they're not used to that because they're used to the rapid interaction with the screen, and could it - again a question - be that they are fidgety and hyperactive and then diagnosed as having a disorder?"