Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder

Previous studies indicate that individuals with autism spectrum disorder (ASD) do not experience optical illusions in the same manner as individuals with typical development. This study uses pupillary responses as an objective measure of perception of visual illusions, with the hypothesis that adult...

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Main Authors: Bruno Laeng, Fredrik Svartdal Færevaag, Stine Tanggaard, Stephen von Tetzchner
Format: Article
Language:English
Published: SAGE Publishing 2018-05-01
Series:i-Perception
Online Access:https://doi.org/10.1177/2041669518771716
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author Bruno Laeng
Fredrik Svartdal Færevaag
Stine Tanggaard
Stephen von Tetzchner
author_facet Bruno Laeng
Fredrik Svartdal Færevaag
Stine Tanggaard
Stephen von Tetzchner
author_sort Bruno Laeng
collection DOAJ
description Previous studies indicate that individuals with autism spectrum disorder (ASD) do not experience optical illusions in the same manner as individuals with typical development. This study uses pupillary responses as an objective measure of perception of visual illusions, with the hypothesis that adults with ASD will show weaker pupillary constrictions to the illusions than adults without ASD. An eye-tracker was used to investigate the spontaneous pupillary changes to brightness illusions in adults diagnosed with ASD ( N  = 11) and in a control group ( N  = 24). Contrary to the hypothesis, the ASD group showed similar pupillary constrictions to the illusory bright stimuli as the control group. Therefore, this study does not support the idea that individuals with ASD have a veridical perception of these types of illusions and instead suggest that atypical perception of illusions does not constitute a universal characteristic of aspect of high-functioning individuals with ASD.
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spelling doaj.art-ba2c8ed3a2f84495a9f42bbb99a6cde92022-12-21T19:16:36ZengSAGE Publishingi-Perception2041-66952018-05-01910.1177/2041669518771716Pupillary Responses to Illusions of Brightness in Autism Spectrum DisorderBruno LaengFredrik Svartdal FærevaagStine TanggaardStephen von TetzchnerPrevious studies indicate that individuals with autism spectrum disorder (ASD) do not experience optical illusions in the same manner as individuals with typical development. This study uses pupillary responses as an objective measure of perception of visual illusions, with the hypothesis that adults with ASD will show weaker pupillary constrictions to the illusions than adults without ASD. An eye-tracker was used to investigate the spontaneous pupillary changes to brightness illusions in adults diagnosed with ASD ( N  = 11) and in a control group ( N  = 24). Contrary to the hypothesis, the ASD group showed similar pupillary constrictions to the illusory bright stimuli as the control group. Therefore, this study does not support the idea that individuals with ASD have a veridical perception of these types of illusions and instead suggest that atypical perception of illusions does not constitute a universal characteristic of aspect of high-functioning individuals with ASD.https://doi.org/10.1177/2041669518771716
spellingShingle Bruno Laeng
Fredrik Svartdal Færevaag
Stine Tanggaard
Stephen von Tetzchner
Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
i-Perception
title Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
title_full Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
title_fullStr Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
title_full_unstemmed Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
title_short Pupillary Responses to Illusions of Brightness in Autism Spectrum Disorder
title_sort pupillary responses to illusions of brightness in autism spectrum disorder
url https://doi.org/10.1177/2041669518771716
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AT stephenvontetzchner pupillaryresponsestoillusionsofbrightnessinautismspectrumdisorder