clipped from: scienceblogs.com 
Our brains are shaping our decisions long before we become consciously aware of them. That's the conclusion of a remarkable new study which shows that patterns of activity in certain parts of our brain can predict the outcome of a decision seconds before we're even aware that we're making one.
Studies like these have important philosophical implications. If our brains unconsciously make our decisions for us, is there any room for free will? Libet himself thinks so, but only in a restricted way. He asserts that for all the brain's unconscious preparation, people can still consciously decide to stop performing an action in the final milliseconds before thought becomes deed. In this view, it's more a case of "free won't" than free will.