Autism is a severe neuropsychiatric disorder characterized by delays or deviation in the development of social and communication skills and the presence of restricted patterns of interests and/or stereotypic motor mannerisms. Autistic disorder is categorized under the pervasive developmental disorders (PDD) in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition-Text Revision.1 The other PDDs include Asperger's disorder, Rett's disorder, childhood disintegrative disorder, and pervasive developmental disorder not otherwise specified (PDD-NOS).1 The term "autism spectrum disorder" (ASD) has recently taken hold in medical practice and research and is considered to be synonymous with PDD, though not a formal DSM-IV-TR diagnosis.

Original languageEnglish
Pages (from-to)35
Number of pages1
JournalPrimary Psychiatry
Issue number1
StatePublished - Jan 2009


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