Size Constancy is Preserved but Afterimages are Prolonged in Typical Individuals with Higher Degrees of Self-Reported Autistic Traits / Irene SPERANDIO in Journal of Autism and Developmental Disorders, 47-2 (February 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-2 (February 2017) . - p.447-459 Titre : Size Constancy is Preserved but Afterimages are Prolonged in Typical Individuals with Higher Degrees of Self-Reported Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : Irene SPERANDIO, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Philippe A. CHOUINARD, Auteur Article en page(s) : p.447-459 Langues : Anglais (eng) Mots-clés : Adaptation  Afterimage  Autism spectrum quotient  Light sensitivity Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1007/s10803-016-2971-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303 [article] Size Constancy is Preserved but Afterimages are Prolonged in Typical Individuals with Higher Degrees of Self-Reported Autistic Traits [Texte imprimé et/ou numérique] / Irene SPERANDIO, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Philippe A. CHOUINARD, Auteur . - p.447-459. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-2 (February 2017) . - p.447-459 Mots-clés : Adaptation  Afterimage  Autism spectrum quotient  Light sensitivity Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1007/s10803-016-2971-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=303

Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases / Philippe A. CHOUINARD in Journal of Autism and Developmental Disorders, 46-6 (June 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2224-2239 Titre : Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases Type de document : Texte imprimé et/ou numérique Auteurs : Philippe A. CHOUINARD, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Irene SPERANDIO, Auteur Article en page(s) : p.2224-2239 Langues : Anglais (eng) Mots-clés : Visual illusions  Shepard’s tabletops illusion  Visual perception  Illusory susceptibility  Autism-spectrum quotient (AQ) Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1007/s10803-016-2753-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289 [article] Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases [Texte imprimé et/ou numérique] / Philippe A. CHOUINARD, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Irene SPERANDIO, Auteur . - p.2224-2239. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2224-2239 Mots-clés : Visual illusions  Shepard’s tabletops illusion  Visual perception  Illusory susceptibility  Autism-spectrum quotient (AQ) Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1007/s10803-016-2753-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289

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