1 From the Departments of Psychiatry, Psychology, and Neurology & Neurosurgery (Leyton), McGill University; Center for Studies in Behavioral Neurobiology (Leyton), Concordia University; Research Unit on Children's Psychosocial Maladjustment (Leyton), Université de Montréal, Montréal, Que.; Faculty of Medicine (Krausz), University of British Columbia, Vancouver, BC [email protected][email protected].