Differentiating Autism and Asperger Syndrome on the Basis of Language Delay or Impairment
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Asperger syndrome (AS) is differentiated from high-functioning autism (HFA) largely on a history of “language delay.” This study examined “specific language impairment” as a predictor of outcome. Language skills of 19 children with AS and 45 with HFA were assessed at 4–6 years of age (Time 1) and 2 years later (Time 2). Children’s symptoms and functional outcome scores were assessed every 2 years (Times 3, 4, and 5) until ages 15–17 years old. Regression analysis revealed that specific language impairment at time 2 more often accounted for the greatest variation in outcome scores in adolescence than the standard diagnosis of AS versus HFA based on history of language delay. Diagnostic implications are discussed.
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- Differentiating Autism and Asperger Syndrome on the Basis of Language Delay or Impairment
Journal of Autism and Developmental Disorders
Volume 38, Issue 4 , pp 616-625
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- Asperger syndrome
- Language impairment
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- Author Affiliations
- 1. Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada, L8N 3Z5
- 2. Offord Centre for Child Studies, Chedoke Site, Hamilton, ON, Canada
- 3. Department of Psychiatry, IWK Health Centre, Dalhousie University, Halifax, NS, Canada
- 4. Speech Pathology and Audiology, University of Alberta, Edmonton, AB, Canada
- 5. Department of Pediatrics, University of Alberta, Edmonton, AB, Canada