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Paper   IPM / Cognitive / 14472
School of Cognitive Sciences
  Title:   Selective impairment of perceptual closure in autism
1.  M.R.A. Dehaqani
2.  M.A. Zarei
3.  A.H. Vahabie
4.  H. Esteky
  Status:   In Proceedings
  Proceeding: Vision Sciences Society Annual Meeting, Florida, 2016.
  Year:  2016
  Supported by:  IPM
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.

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