It may be possible, then, that our intuitions about the role of our conscious "intentions" have led us astray; it may be the case that we have confused correlation with causation by believing that conscious awareness necessarily causes the body's movement. This possibility is bolstered by findings in neurostimulation, brain damage, but also research into introspection illusions. Such illusions show that humans do not have full access to various internal processes. The discovery that humans possess a determined will would have implications for moral responsibility. Neuroscientist and author Sam Harris believes that we are mistaken in believing the intuitive idea that intention initiates actions. In fact, Harris is even critical of the idea that free will is "intuitive": he says careful introspection can cast doubt on free will. Harris argues "Thoughts simply arise in the brain. What else could they do? The truth about us is even stranger than we may suppose: The illusion of free will is itself an illusion"...."
Neuroscience of free will - Wikipedia, the free encyclopedia