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Global and local visual processing in autism: An objective assessment approach / Kritika NAYAR in Autism Research, 10-8 (August 2017)
[article]
Titre : Global and local visual processing in autism: An objective assessment approach Type de document : Texte imprimé et/ou numérique Auteurs : Kritika NAYAR, Auteur ; Angela C. VOYLES, Auteur ; Lynne KIORPES, Auteur ; Adriana DI MARTINO, Auteur Article en page(s) : p.1392-1404 Langues : Anglais (eng) Mots-clés : global visual processing local visual processing Kanizsa illusory contours eye tracking autism spectrum disorder match-to-sample task Index. décimale : PER Périodiques Résumé : We examined global and local visual processing in autism spectrum disorder (ASD) via a match-to-sample task using Kanizsa illusory contours (KIC). School-aged children with ASD (n?=?28) and age-matched typically developing controls (n?=?22; 7–13 years) performed a sequential match-to-sample between a solid shape (sample) and two illusory alternatives. We tracked eye gaze and behavioral performance in two task conditions: one with and one without local interference from background noise elements. While analyses revealed lower accuracy and longer reaction time in ASD in the condition with local interference only, eye tracking robustly captured ASD-related global atypicalities across both conditions. Specifically, relative to controls, children with ASD showed decreased fixations to KIC centers, indicating reduced global perception. Notably, they did not differ from controls in regard to fixations to local elements or touch response location. These results indicate impaired global perception in the absence of heightened local processing in ASD. They also underscore the utility of eye-tracking measures as objective indices of global/local visual processing strategies in ASD. En ligne : http://dx.doi.org/10.1002/aur.1782 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=310
in Autism Research > 10-8 (August 2017) . - p.1392-1404[article] Global and local visual processing in autism: An objective assessment approach [Texte imprimé et/ou numérique] / Kritika NAYAR, Auteur ; Angela C. VOYLES, Auteur ; Lynne KIORPES, Auteur ; Adriana DI MARTINO, Auteur . - p.1392-1404.
Langues : Anglais (eng)
in Autism Research > 10-8 (August 2017) . - p.1392-1404
Mots-clés : global visual processing local visual processing Kanizsa illusory contours eye tracking autism spectrum disorder match-to-sample task Index. décimale : PER Périodiques Résumé : We examined global and local visual processing in autism spectrum disorder (ASD) via a match-to-sample task using Kanizsa illusory contours (KIC). School-aged children with ASD (n?=?28) and age-matched typically developing controls (n?=?22; 7–13 years) performed a sequential match-to-sample between a solid shape (sample) and two illusory alternatives. We tracked eye gaze and behavioral performance in two task conditions: one with and one without local interference from background noise elements. While analyses revealed lower accuracy and longer reaction time in ASD in the condition with local interference only, eye tracking robustly captured ASD-related global atypicalities across both conditions. Specifically, relative to controls, children with ASD showed decreased fixations to KIC centers, indicating reduced global perception. Notably, they did not differ from controls in regard to fixations to local elements or touch response location. These results indicate impaired global perception in the absence of heightened local processing in ASD. They also underscore the utility of eye-tracking measures as objective indices of global/local visual processing strategies in ASD. En ligne : http://dx.doi.org/10.1002/aur.1782 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=310