Susceptibility to optical illusions varies as a function of the autism-spectrum quotient but not in ways predicted by local–global biases

Chouinard, Philippe, Unwin, Katy, Landry, Oriane and Sperandio, Irene (2016) Susceptibility to optical illusions varies as a function of the autism-spectrum quotient but not in ways predicted by local–global biases. Journal of Autism and Developmental Disorders, 46 (6). pp. 2224-2239. ISSN 0162-3257

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Abstract

Individuals with autism spectrum disorder and those with autistic tendencies in non-clinical groups are thought to have a perceptual style privileging local details over global integration. We used 13 illusions to investigate this perceptual style in typically developing adults with various levels of autistic traits. Illusory susceptibility was entered into a principal-component analysis. Only one factor, consisting of the Shepard’s tabletops and Square-diamond illusions, was found to have reduced susceptibility as a function of autistic traits. Given that only two illusions were affected and that these illusions depend mostly on the processing of within-object relational properties, we conclude there is something distinct about autistic-like perceptual functioning but not in ways predicted by a preference of local over global elements.

Item Type: Article
Uncontrolled Keywords: visual illusions,shepard's tabletops illusion,visual perception,illusory susceptibility,autism-spectrum quotient (aq)
Faculty \ School: Faculty of Social Sciences > School of Psychology
Depositing User: Pure Connector
Date Deposited: 21 Mar 2016 23:04
Last Modified: 24 Jul 2019 22:03
URI: https://ueaeprints.uea.ac.uk/id/eprint/57595
DOI: 10.1007/s10803-016-2753-1

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