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  1. Aug 15, 2016 · Diagnosis and Prevalence. Changes to diagnostic criteria in the Diagnostic and Statistical Manual of Mental Disorders, 5th edition included eliminating several sub-diagnostic categories (i.e. Asperger syndrome, pervasive developmental disorder not otherwise specified, disintegrative disorder) and using one term to describe both the lower and higher functioning forms of autism: autism spectrum ...

  2. Mar 19, 2009 · A diagnosis of PDD-NOS is given when the triad of symptoms is present but the criteria are not met for a specific PDD. 3 Often the label “high-functioning autism” is used interchangeably with Asperger disorder. 5 This is controversial and there is considerable debate as to whether children with Asperger disorder, who have normal language ...

  3. Jan 16, 2020 · Autism spectrum disorder — or autism — is a neurodevelopmental disorder that typically manifests in young children. This Primer by Lord and colleagues reviews the epidemiology, mechanisms ...