Chapter

Intellectual Disabilities and Autism Spectrum Disorder: A Cautionary Note

Elisabeth M. Dykens and Miriam Lense

in Autism Spectrum Disorders

Published on behalf of Oxford University Press

Published in print May 2011 | ISBN: 9780195371826
Published online September 2012 | e-ISBN: 9780199965212 | DOI: http://dx.doi.org/10.1093/med/9780195371826.003.0018
Intellectual Disabilities and Autism Spectrum Disorder: A Cautionary Note

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  • Child and Adolescent Psychiatry
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This chapter presents a cautionary tale about the impact of the broader definition of autism on how investigators are conducting their research. Diagnostically, the autism spectrum has expanded to include milder types of autism that are not necessarily associated with intellectual disabilities. At the same time, the inclusionary criteria for autism studies have narrowed to primarily include persons with high IQs, to the exclusion of those with autism and low IQs or with co-occurring syndromes or neurological disorders. The current research practice of truncating IQ and focusing primarily on those with high IQs does not represent the full scope of autism as a spectrum disorder, limits generalizability of findings, and does not represent the majority of persons who have autism spectrum disorder. The chapter describes several ideas for increasing the representation of those with intellectual disabilities into future autism spectrum disorder research.

Chapter.  5908 words. 

Subjects: Child and Adolescent Psychiatry ; Neurology ; Neuroscience

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