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Alternative Names

autism            autism spectrum disorder (ASD)        autism spectrum condition (ASC)   classic autism          Kanner autism        pervasive developmental disorder (PDD)            

Asperger Syndrome   high-functioning autism (HFA)  Pathological Demand Avoidance (PDA)



Over the years, different diagnostic labels have been used, such as autism, autism spectrum disorder (ASD), autism spectrum condition (ASC), classic autism, Kanner autism, pervasive developmental disorder (PDD), high-functioning autism (HFA), Asperger syndrome and Pathological Demand Avoidance (PDA). This reflects the different diagnostic manuals and tools used, and the different autism profiles presented by individuals. Because of recent and upcoming changes to the main diagnostic manuals, 'autism spectrum disorder' (ASD) is now likely to become the most commonly given diagnostic term.