What causes us to make up our minds? A headline from a recent Washington Post article piqued Oprah's curiosity enough for her to invite one of the experts it cited. Dr. Jim Olds, an internationally renowned neuroscientist, talks to Oprah about the article "What Makes Up My Mind?"—a discussion on the mystery of consciousness. Dr. Olds talks about the aspect that differentiates us from the animal kingdom, and how it is responsible for our conscience, our moral code and our sense of self.