DAVID MAHONEY is the chairman of the Charles A. Dana Foundation, the Dana Alliance for Brain Initiatives, and the European Dana Alliance for the Brain, organizations for public education about the brain whose members consist of eight Nobel Prize laureates and more than 200 of the world's most honored scientists conducting brain research today. RICHARD RESTAK, M.D., a practicing neurologist and neuropsychiatrist, is the author of the New York Times bestseller The Brain and other popular books, which have sold close to five million copies.