Journal of Autism and Developmental Disorders

, Volume 38, Issue 1, pp 138–142 | Cite as

Defining the Behavioral Phenotype of Asperger Syndrome

  • Mohammad Ghaziuddin
Original Paper


Asperger syndrome (AS) is characterized by social deficits and restricted interests in the absence of mental retardation and language delay. However, it is unclear to what extent the social deficits of AS differ from those of traditional autism. To address this issue, 58 subjects with AS were compared with 39 subjects with autism. Social deficits were classified according to Wing and Gould’s method. Forty-six (79%) subjects with AS were rated as active but odd, while 32 (82%) with autism were described as aloof and passive, while a few subjects showed mixed features. Thus, despite the overlap between AS and autism, subjects with AS showed a distinct pattern of social impairment. Implications of these findings are discussed.


Asperger syndrome Autism Diagnosis Validity 



The author expresses his gratitude to Kathy Welch of the Center for Statistical Consultation and Research, University of Michigan, and to the NARSAD Foundation.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Division of Child PsychiatryUniversity of MichiganAnn ArborUSA

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