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- Title
Differentiating autism and Asperger syndrome on the basis of language delay or impairment.
- Authors
Bennett, Terry; Szatmari, Peter; Bryson, Susan; Volden, Joanne; Zwaigenbaum, Lonnie; Vaccarella, Liezanne; Duku, Eric; Boyle, Michael
- Abstract
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.
- Publication
Journal of autism and developmental disorders, 2008, Vol 38, Issue 4, p616
- ISSN
0162-3257
- Publication type
Journal Article
- DOI
10.1007/s10803-007-0428-7