THOMAS E. BROWN, PhD, is a clinical psychologist, assistant clinical professor of psychiatry at Yale University School of Medicine, and associate director of the Yale Clinic for Attention and Related Disorders. He is the author of several books including the award-winning Attention Deficit Disorder: The Unfocused Mind in Children and Adults (Yale University Press, 2005), which has been published in seven languages. Visit him at www.drthomasebrown.com.