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

Smith, Danielle; Ropar, Danielle; Allen, Harriet A.

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Authors

Danielle Smith

HARRIET ALLEN H.A.Allen@nottingham.ac.uk
Professor of Lifespan Psychology



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.

Citation

Smith, D., Ropar, D., & Allen, H. A. (in press). The integration of occlusion and disparity information for judging depth in autism spectrum disorder. Journal of Autism and Developmental Disorders, https://doi.org/10.1007/s10803-017-3234-x

Journal Article Type Article
Acceptance Date May 26, 2017
Online Publication Date Jul 7, 2017
Deposit Date Jul 10, 2017
Publicly Available Date Jul 10, 2017
Journal Journal of Autism and Developmental Disorders
Print ISSN 0162-3257
Electronic ISSN 1573-3432
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1007/s10803-017-3234-x
Keywords autism spectrum disorder, occlusion, disparity, cue integration, depth, 3D
Public URL https://nottingham-repository.worktribe.com/output/871633
Publisher URL https://link.springer.com/article/10.1007%2Fs10803-017-3234-x
Contract Date Jul 10, 2017

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