Brief Autism Background

Autism is a complex behavioral disorder manifesting in infancy or early childhood, although its origin may be genetic or prenatal. Its clinical presentation is characterized by impairments in social interaction and communication, and by repetitive, stereotyped behaviors. In recent years, the number of children diagnosed with an autism spectrum disorders has increased to a significant degree. The reasons for this increase are not fully understood but are thought to be due at least in part to expanded diagnostic criteria, greater public and professional awareness, and increased availability of intervention programs. The possibility of a true increase in incidence cannot be dismissed. Genetic and non-genetic factors that contribute to autism are largely unknown and are currently the focus of intense epidemiologic, clinical, and basic science investigation. There are many informative autism web sites available for further information.