While I have certainly been guilty of saying things like, "I'm more of a right-brained thinker," I have always assumed that the brain is far too complex to be boiled down to such simplicities. The way I see it, the brain research that is currently underway is as exciting and ground breaking as any of our space endeavors. If you get a moment, meaning a few hours, check out Charlie Rose's Brain Series. He had some great guests on to discuss some of the current research and it's implications.