Experimental psychologists and neuroscientists have done very much better with investigating the illusoriness of 'will-power', 'decision-making', and so on. Ingenious experiments strongly suggest, for example, that our actions are frequently under way before our awareness of having 'made a decision', and that the reasons we give for what we do are frequently confabulated after the event. Much of the more recent of this work is usefully and accessibly summarized by Susan Blackmore (2001), Consciousness, The Psychologist, 14, 522-525.