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Perceptual Processing among High-functioning Persons with Autism

Published online by Cambridge University Press:  01 February 1999

Laurent Mottron
Affiliation:
Clinique Spécialisée de l'Autisme et Service de recherche, Hôpital Rivière-des-Prairies, and Université de Montréal, Montréal, Canada
Jacob A. Burack
Affiliation:
McGill University, Montréal, Canada
Johannes E. A. Stauder
Affiliation:
Maastricht University, The Netherlands
Philippe Robaey
Affiliation:
Université de Montréal and Centre de Recherche de l'Hôpital Sainte-Justine, Montréal, Canada
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Abstract

Two tasks were used to assess the processing of whole versus parts of objects in a group of high-functioning children and adolescents with autism (N=11) and a comparison group of typically developing peers (N=11) matched for chronological age and IQ. In the first task, only the children with autism showed a global advantage, and the two groups showed similar interference between levels. In the second task, the children with autism, despite longer RTs, showed similar performance to the comparison group with regard to the effect of goodness on visual parsing. Contrary to expectations based on the central coherence and hierarchisation deficit theories, these findings indicate intact holistic processing among persons with autism. The implications of these findings are discussed in relation to apparently discrepant evidence from other studies.

Type
Research Article
Copyright
© 1999 Association for Child Psychology and Psychiatry

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