Clinical psych (degree, not profession-- I'm a project manager at the National Institutes of Health):
Mostly FR cash games (2NL) and am currently 21/14/2.5 (about 5.5K hands) for the past 2.5 months.
My play has changed a lot since November because I'm taking things much more seriously, gotten involved in CC, and studying a lot more (plus got a HUD--PT3-- and use it to review lots of my hands).
I'd like to think I'm basically a TAG but not sure my current stats agree with that.
I like the premise of this post: My fascination with poker really is connected to psychology. I love the combination of player dynamics with the math.