Size constancy is preserved but afterimages are prolonged in typical individuals with higher degrees of self-reported autistic traits

Sperandio, Irene, Unwin, Katy L., Landry, Oriane and Chouinard, Philippe A. 2017. Size constancy is preserved but afterimages are prolonged in typical individuals with higher degrees of self-reported autistic traits. Journal of Autism and Developmental Disorders 47 (2) , pp. 447-459. 10.1007/s10803-016-2971-6

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Abstract

Deficits in perceptual constancies from early infancy have been proposed to contribute to autism and exacerbate its symptoms (Hellendoorn et al., Frontiers in Psychology 6:1–16, 2015). Here, we examined size constancy in adults from the general population (N = 106) with different levels of self-reported autistic traits using an approach based on negative afterimages. The afterimage strength, as indexed by duration and vividness, was also quantified. In opposition to the Hellendoorn and colleagues’ model, we were unable to demonstrate any kind of relationship between abilities in size constancy and autistic traits. However, our results demonstrated that individuals with higher degrees of autistic traits experienced more persistent afterimages. We discuss possible retinal and post-retinal explanations for prolonged afterimages in people with higher levels of autistic traits.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Uncontrolled Keywords:	AdaptationAfterimageAutism spectrum quotientLight sensitivity
Publisher:	Springer Verlag
ISSN:	0162-3257
Date of First Compliant Deposit:	13 January 2017
Date of Acceptance:	23 November 2016
Last Modified:	19 Aug 2023 22:45
URI:	https://orca.cardiff.ac.uk/id/eprint/97400

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