Autism is a brain development disorder that impairs social interaction and communication, and causes restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder autism spectrum disorders (ASD) such as Asperger syndrome. ...read more from Wikipedia
- Autism is one of the five pervasive developmental disorders (PPD), which are characterized by widespread abnormalities of social interactions and communication.
- Of the other PPD forms, Asperger syndrome is closest to autism.
- Autism is distinguished by a pattern of symptoms rather than one single symptom.
- The main characteristics are impairments in social interaction, impairments in communication, restricted interests and repetitive behavior.