One of the oldest research orgs in N. America devoted to the scientific investigation of disordered human behavior, and its biological & psychosocial substrates The APPA is devoted to the scientific investigation of disordered human behavior, and its biological and psychosocial substrates. THE AMERICAN PSYCHOPATHOLOGICA ASSOCIATION IS DEVOTED TO THE SCIENTIFIC INVESTIGATION OF DISORDERED HUMAN BEHAVIOR, AND ITS BIOLOGICAL AND PSYCHOSOCIAL SUBSTRATES. ITS PRIMARY FUNCTION IS TO SPONSOR AN ANNUAL CONFERENCE ON A SPECIFIC TOPIC RELEVANT TO RESEARCH IN PSYCHOPATHOLOGY. THE CONFERENCE PROVIDES AN UNIQUE OPPORTUNITY FOR MENTAL HEALTH SPECIALISTS TO LEARN ABOUT, DISCUSS, AND DEBATE CUTTING EDGE ISSUES IN THE TOPIC AREA AND IS OPEN TO ALL MENTAL HEALTH PROFESSIONALS, TRAINEES, AND APPA MEMBERS.