Neural Basis of Visual Attentional Orienting in Childhood Autism Spectrum Disorders / Eric R. MURPHY in Journal of Autism and Developmental Disorders, 47-1 (January 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-1 (January 2017) . - p.58-67 Titre : Neural Basis of Visual Attentional Orienting in Childhood Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Eric R. MURPHY, Auteur ; Megan NORR, Auteur ; John F. STRANG, Auteur ; Lauren KENWORTHY, Auteur ; William D. GAILLARD, Auteur ; Chandan J. VAIDYA, Auteur Article en page(s) : p.58-67 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Attention orienting  Visual salience  fMRI  Restricted and repetitive behavior Index. décimale : PER Périodiques Résumé : We examined spontaneous attention orienting to visual salience in stimuli without social significance using a modified Dot-Probe task during functional magnetic resonance imaging in high-functioning preadolescent children with Autism Spectrum Disorder (ASD) and age- and IQ-matched control children. While the magnitude of attentional bias (faster response to probes in the location of solid color patch) to visually salient stimuli was similar in the groups, activation differences in frontal and temporoparietal regions suggested hyper-sensitivity to visual salience or to sameness in ASD children. Further, activation in a subset of those regions was associated with symptoms of restricted and repetitive behavior. Thus, atypicalities in response to visual properties of stimuli may drive attentional orienting problems associated with ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2928-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=298 [article] Neural Basis of Visual Attentional Orienting in Childhood Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Eric R. MURPHY, Auteur ; Megan NORR, Auteur ; John F. STRANG, Auteur ; Lauren KENWORTHY, Auteur ; William D. GAILLARD, Auteur ; Chandan J. VAIDYA, Auteur . - p.58-67. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-1 (January 2017) . - p.58-67 Mots-clés : Autism spectrum disorder  Attention orienting  Visual salience  fMRI  Restricted and repetitive behavior Index. décimale : PER Périodiques Résumé : We examined spontaneous attention orienting to visual salience in stimuli without social significance using a modified Dot-Probe task during functional magnetic resonance imaging in high-functioning preadolescent children with Autism Spectrum Disorder (ASD) and age- and IQ-matched control children. While the magnitude of attentional bias (faster response to probes in the location of solid color patch) to visually salient stimuli was similar in the groups, activation differences in frontal and temporoparietal regions suggested hyper-sensitivity to visual salience or to sameness in ASD children. Further, activation in a subset of those regions was associated with symptoms of restricted and repetitive behavior. Thus, atypicalities in response to visual properties of stimuli may drive attentional orienting problems associated with ASD. En ligne : http://dx.doi.org/10.1007/s10803-016-2928-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=298

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