William Rodman Shankle, M.S., M.D., a neurologist with expertise in dementia, established the University of California, Irvine, Alzheimer's Disease Clinic in 1988 and served as its medical director for ten years. Daniel G. Amen, M.D., is a clinical neuroscientist, a psychiatrist, and the director of clinics in California, Washington state, and Virginia. In addition to operating a private practice, he is an assistant clinical professor of psychiatry and human behavior at the University of California, Irvine, College of Medicine. He is the author of Healing ADD, Healing Anxiety and Depression, and Change Your Brain, Change Your Life.