A very interesting paper in The Harvard Review of Psychiatry looks at the effect methylphenidate has on the brain. This is a link to the original article (the abstract is free).

There is a more layman friendly description in ScienceDaily. (And before anyone writes in, yes, we are aware that the word ‘normalises’ is spelled differently on either side of the Atlantic.)

Methylphenidate ‘Normalizes’ Activation in Key Brain Areas in Kids With ADHD, Study Suggests

http://www.sciencedaily.com/releases/2013/05/130509123329.htm