Dr. Barrett received his Ph.D. from the University of Pittsburgh, 1978. He completed his fellowship training at the Western Psychiatric Institute & Clinic, University of Pittsburgh School of Medicine. Dr. Barrett is Director, Center for Autism & Developmental Disabilities, Emma Pendleton Bradley Hospital. The Center for Autism & Developmental Disabilities at Bradley Hospital is the nation's largest and most comprehensive specialty clinical care program for children with autism spectrum disorders and/or mental retardation and their families. The program offers a continuum of clinical care settings including inpatient, day patient, residential, home-based and outpatient services to families. Dr. Barrett has published extensively on psychiatric aspects of autism, Asperger's syndrome, epilepsy, mental retardation, and developmental disabilities.