Apologies for the dualistic language. I am simply not the best writer, and if anyone wants to take a stab at cleaning the point up, I'd be quite happy.

You're right that you probably wouldn't feel like someone else took over. I kind of doubt you'd feel you wouldn't know, either. Or rather: You wouldn't know after the fact, but you probably would know during the fact. It would probably feel like being extremely high, and doing one of the ridiculous things we humans do when we're in those states.

I agree that unconscious decisions usually precede conscious justifications. I figure that these are a large part of what makes a "personality," and might further explain why personalities are so inflexible across time. Unless I'm greatly confused!