A Spectrotemporal Correlate of Language Impairment in Autism Spectrum Disorder / Luke BLOY in Journal of Autism and Developmental Disorders, 49-8 (August 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-8 (August 2019) . - p.3181-3190 Titre : A Spectrotemporal Correlate of Language Impairment in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Luke BLOY, Auteur ; K. SHWAYDER, Auteur ; Lisa BLASKEY, Auteur ; T. P. L. ROBERTS, Auteur ; D. EMBICK, Auteur Article en page(s) : p.3181-3190 Langues : Anglais (eng) Mots-clés : Language impairment  Lexical access  Magnetoencephalography (MEG)  Oscillation Index. décimale : PER Périodiques Résumé : This study introduces an objective neurophysiological marker of language ability, the integral of event-related desynchronization in the 5-20 Hz band during 0.2-1 seconds post auditory stimulation with interleaved word/non-word tokens. This measure correlates with clinical assessment of language function in both ASD and neurotypical pediatric populations. The measure does not appear related to general cognitive ability nor autism symptom severity (beyond degree of language impairment). We suggest that this oscillatory brain activity indexes lexical search and thus increases with increased search in the mental lexicon. While specificity for language impairment in ASD remains to be determined, such an objective index has potential utility in low functioning individuals with ASD and young children during language acquisition. En ligne : http://dx.doi.org/10.1007/s10803-019-04040-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403 [article] A Spectrotemporal Correlate of Language Impairment in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Luke BLOY, Auteur ; K. SHWAYDER, Auteur ; Lisa BLASKEY, Auteur ; T. P. L. ROBERTS, Auteur ; D. EMBICK, Auteur . - p.3181-3190. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-8 (August 2019) . - p.3181-3190 Mots-clés : Language impairment  Lexical access  Magnetoencephalography (MEG)  Oscillation Index. décimale : PER Périodiques Résumé : This study introduces an objective neurophysiological marker of language ability, the integral of event-related desynchronization in the 5-20 Hz band during 0.2-1 seconds post auditory stimulation with interleaved word/non-word tokens. This measure correlates with clinical assessment of language function in both ASD and neurotypical pediatric populations. The measure does not appear related to general cognitive ability nor autism symptom severity (beyond degree of language impairment). We suggest that this oscillatory brain activity indexes lexical search and thus increases with increased search in the mental lexicon. While specificity for language impairment in ASD remains to be determined, such an objective index has potential utility in low functioning individuals with ASD and young children during language acquisition. En ligne : http://dx.doi.org/10.1007/s10803-019-04040-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403

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