Classification of Aspergers Syndrome
Asperger Syndrome is one of the autism spectrum disorders. What are autism spectrum disorders? They are also called pervasive developmental disorders in the DSM-IV. These conditions are characterized by challenges/deficits of social interaction and communication.
ASD, in turn, is a subset of the broader autism phenotype (BAP), which describes individuals who may not have ASD but do have autistic-like traits, such as social deficits. Of the other four ASD forms, autism is the most similar to AS in signs and likely causes but its diagnosis requires impaired communication and allows delay in cognitive development; Rett syndrome and childhood disintegrative disorder share several signs with autism but may have unrelated causes; and pervasive developmental disorder not otherwise specified (PDD-NOS) is diagnosed when the criteria for a more specific disorder are unmet.