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Titre : Phonetic Inflexibility in Autistic Adults Type de document : Texte imprimé et/ou numérique Auteurs : M. KISSINE, Auteur ; P. GEELHAND, Auteur ; M. PHILIPPART DE FOY, Auteur ; B. HARMEGNIES, Auteur ; G. DELIENS, Auteur Article en page(s) : p.1186-1196 Langues : Anglais (eng) Mots-clés : Acoustics Adult Autism Spectrum Disorder Autistic Disorder/complications Humans Male Phonetics Speech Speech Acoustics acoustics autism language phonetic compliance phonetic inflexibility in autistic adults prosody Index. décimale : PER Périodiques Résumé : This study examined whether the atypical speech style that is frequently reported in autistic adults is underpinned by an inflexible production of phonetic targets. In a first task, 20 male autistic adults and 20 neuro-typicals had to read and produce native vowels. To assess the extent to which phonetic inflexibility is due to an overall fine-grained control of phonetic behavior or to a lack of flexibility in the realization of one's phonological repertoire, the second task asked participants to reproduce artificial vowel-like sounds. Results confirmed the presence of a greater articulatory stability in the production of native vowels in autistic adults. When instructed to imitate artificial vowel-like sounds, the autistic group did not better approximate the targets' acoustic properties relative to neuro-typicals but their performance at reproducing artificial vowels was less variable and influenced to a greater extent by the articulatory properties of their own vocalic space. These findings suggest that the greater articulatory stability observed in autistic adults arises from a lack of flexibility in the production of their own native vowels. The two phonetic tasks are devoid of any pragmatic constraint, which indicates that phonetic inflexibility in autism is partly independent of register selection. LAY SUMMARY: Autistic and neuro-typical adults took part in two tasks: one in which they produced vowels from French, their native tongue, and the other where they imitated unfamiliar vowels. Autistic adults displayed significantly less variation in their production of different French vowels. In imitating unfamiliar vowels, they were more influenced by the way they pronounce French vowels. These results suggest that the atypical speech style, frequently attested in autistic individuals, could stem from an unusually stable pronunciation of speech sounds. En ligne : http://dx.doi.org/10.1002/aur.2477 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449
in Autism Research > 14-6 (June 2021) . - p.1186-1196[article] Phonetic Inflexibility in Autistic Adults [Texte imprimé et/ou numérique] / M. KISSINE, Auteur ; P. GEELHAND, Auteur ; M. PHILIPPART DE FOY, Auteur ; B. HARMEGNIES, Auteur ; G. DELIENS, Auteur . - p.1186-1196.
Langues : Anglais (eng)
in Autism Research > 14-6 (June 2021) . - p.1186-1196
Mots-clés : Acoustics Adult Autism Spectrum Disorder Autistic Disorder/complications Humans Male Phonetics Speech Speech Acoustics acoustics autism language phonetic compliance phonetic inflexibility in autistic adults prosody Index. décimale : PER Périodiques Résumé : This study examined whether the atypical speech style that is frequently reported in autistic adults is underpinned by an inflexible production of phonetic targets. In a first task, 20 male autistic adults and 20 neuro-typicals had to read and produce native vowels. To assess the extent to which phonetic inflexibility is due to an overall fine-grained control of phonetic behavior or to a lack of flexibility in the realization of one's phonological repertoire, the second task asked participants to reproduce artificial vowel-like sounds. Results confirmed the presence of a greater articulatory stability in the production of native vowels in autistic adults. When instructed to imitate artificial vowel-like sounds, the autistic group did not better approximate the targets' acoustic properties relative to neuro-typicals but their performance at reproducing artificial vowels was less variable and influenced to a greater extent by the articulatory properties of their own vocalic space. These findings suggest that the greater articulatory stability observed in autistic adults arises from a lack of flexibility in the production of their own native vowels. The two phonetic tasks are devoid of any pragmatic constraint, which indicates that phonetic inflexibility in autism is partly independent of register selection. LAY SUMMARY: Autistic and neuro-typical adults took part in two tasks: one in which they produced vowels from French, their native tongue, and the other where they imitated unfamiliar vowels. Autistic adults displayed significantly less variation in their production of different French vowels. In imitating unfamiliar vowels, they were more influenced by the way they pronounce French vowels. These results suggest that the atypical speech style, frequently attested in autistic individuals, could stem from an unusually stable pronunciation of speech sounds. En ligne : http://dx.doi.org/10.1002/aur.2477 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449