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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)
[article]
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
in Journal of Autism and Developmental Disorders > 47-2 (February 2017) . - p.447-459[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 Visual Afterimages of Emotional Faces in High Functioning Autism / Melissa D. RUTHERFORD in Journal of Autism and Developmental Disorders, 42-2 (February 2012)
[article]
Titre : Visual Afterimages of Emotional Faces in High Functioning Autism Type de document : Texte imprimé et/ou numérique Auteurs : Melissa D. RUTHERFORD, Auteur ; Erin K. TROUBRIDGE, Auteur ; Jennifer A. WALSH, Auteur Année de publication : 2012 Article en page(s) : p.221-229 Langues : Anglais (eng) Mots-clés : Facial expression Afterimage Psychological space Face perception Index. décimale : PER Périodiques Résumé : Fixating an emotional facial expression can create afterimages, such that subsequent faces are seen as having the opposite expression of that fixated. Visual afterimages have been used to map the relationships among emotion categories, and this method was used here to compare ASD and matched control participants. Participants adapted to a facial expression for 45 s then saw a neutral face for 800 ms and chose a label to describe the latter. The ASD group showed evidence of afterimages, but atypical patterns of opposition: whereas fixating negative emotions uniformly evokes a positive afterimage in the control group, fixating negative emotions was more likely to evoke a negative afterimage in the ASD group. This study was the first to provide evidence of visual aftereffects in ASD and suggests a different psychological organization among emotions in those with ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1233-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151
in Journal of Autism and Developmental Disorders > 42-2 (February 2012) . - p.221-229[article] Visual Afterimages of Emotional Faces in High Functioning Autism [Texte imprimé et/ou numérique] / Melissa D. RUTHERFORD, Auteur ; Erin K. TROUBRIDGE, Auteur ; Jennifer A. WALSH, Auteur . - 2012 . - p.221-229.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 42-2 (February 2012) . - p.221-229
Mots-clés : Facial expression Afterimage Psychological space Face perception Index. décimale : PER Périodiques Résumé : Fixating an emotional facial expression can create afterimages, such that subsequent faces are seen as having the opposite expression of that fixated. Visual afterimages have been used to map the relationships among emotion categories, and this method was used here to compare ASD and matched control participants. Participants adapted to a facial expression for 45 s then saw a neutral face for 800 ms and chose a label to describe the latter. The ASD group showed evidence of afterimages, but atypical patterns of opposition: whereas fixating negative emotions uniformly evokes a positive afterimage in the control group, fixating negative emotions was more likely to evoke a negative afterimage in the ASD group. This study was the first to provide evidence of visual aftereffects in ASD and suggests a different psychological organization among emotions in those with ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1233-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=151