Autism Disorder

Autism is a development disorder that is characterized by severe behavioral abnormalities across all PRIMARY areas of functioning. Its  ONSET is often early; it generally makes itself known by the age of two and one-half. It is not a single disease entity but is instead a  SYNDROME defined by patterns and characteristics of behavior; it, therefore, most likely has multiple ETIOLOGIES rather than a single causative factor. Autism is not fully understood and thus is controversial WITH RESPECT TO diagnosis, etiology, and treatment strategies.