Book on Brain Technology

A few years back (at least three, I would guess) there was a book out on technology for the brain. I looked at it and put it on my back burner list and now have forgotten it.

The author looked at and tested several machines used in the treatment of the brain. I skimmed it at Borders. I remember one quote in regards to a machine that helped teach children to focus - the youth interviewed said something to the effect: So *this *is how it feels to think right!

Is this ringing a bell for anyone?