The integration of occlusion and disparity information for judging depth in autism spectrum disorder

Smith, Danielle and Ropar, Danielle and Allen, Harriet A. (2017) The integration of occlusion and disparity information for judging depth in autism spectrum disorder. Journal of Autism and Developmental Disorders . ISSN 1573-3432

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Abstract

In autism spectrum disorder (ASD), atypical integration of visual depth cues may be due to flattened perceptual priors or selective fusion. The current study attempts to disentangle these explanations by psychophysically assessing within-modality integration of ordinal (occlusion) and metric (disparity) depth cues while accounting for sensitivity to stereoscopic information. Participants included 22 individuals with ASD and 23 typically developing matched controls. Although adults with ASD were found to have significantly poorer stereoacuity, they were still able to automatically integrate conflicting depth cues, lending support to the idea that priors are intact in ASD. However, dissimilarities in response speed variability between the ASD and TD groups suggests that there may be differences in the perceptual decision-making aspect of the task.

Item Type: Article
Keywords: autism spectrum disorder, occlusion, disparity, cue integration, depth, 3D
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Psychology
Identification Number: 10.1007/s10803-017-3234-x
Depositing User: Eprints, Support
Date Deposited: 10 Jul 2017 12:37
Last Modified: 12 Oct 2017 23:43
URI: http://eprints.nottingham.ac.uk/id/eprint/44075

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