How defined are we on the cellular level?

It turns out that your mind is only partially conscious about some of the things your brain does. According to this Wired Magazine article, brain scanners can see your decisions before you consciously make them -- in accordance with patterns of brain activity.

However, scientists conceed that we are not completely moist robots. The scanner isn't correct 100% of the time, and the study is about predicting buttons to be pressed, not complex decision-making.

The idea of the inevitable mind control studies which will surely follow leave me with a rather unsavory taste in my mouth -- kind of in a casserole-of-evil-with-a-potato-chip-crust-of-despair flavor...