ROBERT A. BURTON, M.D., graduated from Yale University and the University of California at San Francisco medical school, where he also completed his neurology residency. At age thirty-three, he was appointed chief of the Division of Neurology at UCSF Medical Center at Mt. Zion, where he subsequently became Associate Chief of the Department of Neurosciences. His writings include On Being Certain: Believing You Are Right Even When You're Not, A Skeptic's Guide to the Mind; What Neuroscience Can and Cannot Tell Us About Ourselves, three critically acclaimed novels and a neuroscience and culture column at Salon.com-- Mind Reader (2008-2009). He lives in the San Francisco Bay Area.