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Soulieres, Isabelle; Mottron, Laurent; Saumier, Daniel; Larochelle, Serge – Journal of Autism and Developmental Disorders, 2007
A diminished top-down influence has been proposed in autism, to account for enhanced performance in low-level perceptual tasks. Applied to perceptual categorization, this hypothesis predicts a diminished influence of category on discrimination. In order to test this hypothesis, we compared categorical perception in 16 individuals with and 16…
Descriptors: Autism, Task Analysis, Perception, Hypothesis Testing
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Rutherford, M. D.; Pennington, Bruce F.; Rogers, Sally J. – Journal of Autism and Developmental Disorders, 2006
Visual perception may be a developmental prerequisite to some types of social understanding. The ability to perceive social information given visual motion appears to develop early. However, children with autism have profound deficits in social cognitive function and may fail to see social motion in the same way that typically developing children…
Descriptors: Motion, Geometric Concepts, Visual Perception, Developmental Disabilities