Autism topic

Autism is a brain development disorder that is characterized by impaired social interaction and communication, and 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 pervasive developmental disorder not otherwise specified (PDD-NOS). Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether ASD is explained more by multigene... full article at wikipedia