August 2016
Volume 16, Issue 12
Open Access
Vision Sciences Society Annual Meeting Abstract  |   September 2016
Selective impairment of perceptual closure in autism
Author Affiliations
  • Mohammad-Reza A. Dehaqani
    School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Tehran, Iran (P.O. Box 19395-5746).
  • Mehdi Alizadeh Zarei
    School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Tehran, Iran (P.O. Box 19395-5746).
  • Abdol-Hossein Vahabie
    School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Tehran, Iran (P.O. Box 19395-5746).
  • Hossein Esteky
    School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Tehran, Iran (P.O. Box 19395-5746).
Journal of Vision September 2016, Vol.16, 477. doi:10.1167/16.12.477
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      Mohammad-Reza A. Dehaqani, Mehdi Alizadeh Zarei, Abdol-Hossein Vahabie, Hossein Esteky; Selective impairment of perceptual closure in autism. Journal of Vision 2016;16(12):477. doi: 10.1167/16.12.477.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Impairment of sensory processing and integration is a hallmark of autism spectrum disorder. Basic components of fragmented image in perceptual closure need to be integrated to make a coherent visual perception. Here, we used an object naming task to test the significance of deletion of vertices vs. extended contours in naming fragmented line drawings of natural objects in typical and Autism Spectrum Disorder (ASD) children. When vertices were missing and only extended edges were visible, typical and ASD subjects performed similarly. But typical children performed significantly better than ASD children when only vertex information was visible. These results suggest that binding vertices, but not edges, to form a holistic representation of an object in children with ASD is impaired.

Meeting abstract presented at VSS 2016

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