In this live-action, fast-paced program, some very tricky optical illusions show that the brain doesn't always correctly interpret what it sees. Viewers will also get to check out Bill Nye from a whole new angle when he gets an M.R.I. of his brain. Features comedy, music videos, interviews with real scientists and hands-on experiments to make the concepts presented understandable and fun. Disney Educational Production. c 1995, 2004 Disney.