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.
KeywordsAutism Asperger syndrome Language impairment Outcomes
This research project was funded by the Ontario Mental Health Foundation. We would like to acknowledge the children and families who have participated so faithfully in this project over several years.
- American Psychiatric Association (2000). Diagnostic and statistical manual of mental disorders DSM-IV text revision (4th ed.). Washington DC: American Psychiatric Association.Google Scholar
- Cook, R. J. (1987). PC-AGREE—Fortran program based on paper by Holman CDJ:Hamilton, ON.Google Scholar
- Fenson, L., Dale, P. S., Reznick, J. S., Bates, E., Thal, D. J., & Pethick, S. (1994). Variability in early communicative development. Monographs of the Society of Research in Child Development, 59, 1–173.Google Scholar
- Karmiloff, K., & Karmiloff-Smith, A. (2001). Pathways to language from fetus to adolescent. Cambridge, Massachusetts and London, England: Harvard University Press.Google Scholar
- Levine, M. N. (1986). Arthur adaptation of the Leiter international performance scale: A handbook. Montreal, QC: Institute of Psychological Research.Google Scholar
- Newcomer, P. L., & Hammill, D. D. (1988). Testof Language Development-2. Toronto: Psycan.Google Scholar
- Sparrow, S. S., Balla, D. D., & Chichetti, D. V. (1984). Vineland adaptive behavior scales (Survey Form). Circle Pines, MN: American Guidance Service.Google Scholar
- SPSS Inc. (2004). SPSS for Windows, Release 13.0.1. Chicago, IL.Google Scholar
- Ssucharewa, G. E., & Wolff, S. (1996). The first account of the syndrome Asperger described? Translation of a paper entitled “Die schizoiden Psychopathien im Kindesalter” by Dr. G. E. Swsucharewa; scientific assistant, which appeared in 1926 in the Monatsschrift fur Psychiatrie und Neurologie 60:235–261 European Child and Adolescent Psychiatry 5:119–132.Google Scholar
- Szatmari, P. (2000). The classification of autism, Asperger’s syndrome and pervasive developmental disorder. Canadian Journal of Psychiatry, 45, 731–738.Google Scholar
- Thorndike, R. L., Hagn, E. P., & Sutter, J. M. (1985). Stanford-Binet Intelligence Scale (4th ed.). Chicago: Riverside.Google Scholar