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Auteur Margaret MITCHELL |
Documents disponibles écrits par cet auteur (1)
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Titre : Computational prosodic markers for autism Type de document : Texte imprimé et/ou numérique Auteurs : Jan P. H. VAN SANTEN, Auteur ; Lois M. BLACK, Auteur ; Emily T. PRUD'HOMMEAUX, Auteur ; Margaret MITCHELL, Auteur Année de publication : 2010 Article en page(s) : p.215-236 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : We present results obtained with new instrumental methods for the acoustic analysis of prosody to evaluate prosody production by children with Autism Spectrum Disorder (ASD) and Typical Development (TD). Two tasks elicit focal stress — one in a vocal imitation paradigm, the other in a picture-description paradigm; a third task also uses a vocal imitation paradigm, and requires repeating stress patterns of two-syllable nonsense words. The instrumental methods differentiated significantly between the ASD and TD groups in all but the focal stress imitation task. The methods also showed smaller differences in the two vocal imitation tasks than in the picture-description task, as was predicted. In fact, in the nonsense word stress repetition task, the instrumental methods showed better performance for the ASD group. The methods also revealed that the acoustic features that predict auditory-perceptual judgment are not the same as those that differentiate between groups. Specifically, a key difference between the groups appears to be a difference in the balance between the various prosodic cues, such as pitch, amplitude, and duration, and not necessarily a difference in the strength or clarity with which prosodic contrasts are expressed. En ligne : http://dx.doi.org/10.1177/1362361309363281 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107
in Autism > 14-3 (May 2010) . - p.215-236[article] Computational prosodic markers for autism [Texte imprimé et/ou numérique] / Jan P. H. VAN SANTEN, Auteur ; Lois M. BLACK, Auteur ; Emily T. PRUD'HOMMEAUX, Auteur ; Margaret MITCHELL, Auteur . - 2010 . - p.215-236.
Langues : Anglais (eng)
in Autism > 14-3 (May 2010) . - p.215-236
Index. décimale : PER Périodiques Résumé : We present results obtained with new instrumental methods for the acoustic analysis of prosody to evaluate prosody production by children with Autism Spectrum Disorder (ASD) and Typical Development (TD). Two tasks elicit focal stress — one in a vocal imitation paradigm, the other in a picture-description paradigm; a third task also uses a vocal imitation paradigm, and requires repeating stress patterns of two-syllable nonsense words. The instrumental methods differentiated significantly between the ASD and TD groups in all but the focal stress imitation task. The methods also showed smaller differences in the two vocal imitation tasks than in the picture-description task, as was predicted. In fact, in the nonsense word stress repetition task, the instrumental methods showed better performance for the ASD group. The methods also revealed that the acoustic features that predict auditory-perceptual judgment are not the same as those that differentiate between groups. Specifically, a key difference between the groups appears to be a difference in the balance between the various prosodic cues, such as pitch, amplitude, and duration, and not necessarily a difference in the strength or clarity with which prosodic contrasts are expressed. En ligne : http://dx.doi.org/10.1177/1362361309363281 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107