Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders / Christine M. FALTER in Journal of Autism and Developmental Disorders, 43-8 (August 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1857-1866 Titre : Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur ; Sven BRAEUTIGAM, Auteur ; Roger NATHAN, Auteur ; Sarah J. CARRINGTON, Auteur ; Anthony J. BAILEY, Auteur Article en page(s) : p.1857-1866 Langues : Anglais (eng) Mots-clés : High-functioning autism  Asperger syndrome  Event timing  Visual simultaneity  Magnetoencephalography Index. décimale : PER Périodiques Résumé : We compared judgements of the simultaneity or asynchrony of visual stimuli in individuals with autism spectrum disorders (ASD) and typically-developing controls using Magnetoencephalography (MEG). Two vertical bars were presented simultaneously or non-simultaneously with two different stimulus onset delays. Participants with ASD distinguished significantly better between real simultaneity (0 ms delay between two stimuli) and apparent simultaneity (17 ms delay between two stimuli) than controls. In line with the increased sensitivity, event-related MEG activity showed increased differential responses for simultaneity versus apparent simultaneity. The strongest evoked potentials, observed over occipital cortices at about 130 ms, were correlated with performance differences in the ASD group only. Superior access to early visual brain processes in ASD might underlie increased resolution of visual events in perception. En ligne : http://dx.doi.org/10.1007/s10803-012-1735-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205 [article] Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur ; Sven BRAEUTIGAM, Auteur ; Roger NATHAN, Auteur ; Sarah J. CARRINGTON, Auteur ; Anthony J. BAILEY, Auteur . - p.1857-1866. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1857-1866 Mots-clés : High-functioning autism  Asperger syndrome  Event timing  Visual simultaneity  Magnetoencephalography Index. décimale : PER Périodiques Résumé : We compared judgements of the simultaneity or asynchrony of visual stimuli in individuals with autism spectrum disorders (ASD) and typically-developing controls using Magnetoencephalography (MEG). Two vertical bars were presented simultaneously or non-simultaneously with two different stimulus onset delays. Participants with ASD distinguished significantly better between real simultaneity (0 ms delay between two stimuli) and apparent simultaneity (17 ms delay between two stimuli) than controls. In line with the increased sensitivity, event-related MEG activity showed increased differential responses for simultaneity versus apparent simultaneity. The strongest evoked potentials, observed over occipital cortices at about 130 ms, were correlated with performance differences in the ASD group only. Superior access to early visual brain processes in ASD might underlie increased resolution of visual events in perception. En ligne : http://dx.doi.org/10.1007/s10803-012-1735-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205

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