Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders / Fei CHEN in Autism Research, 14-7 (July 2021)  

Public ISBD [article]  inAutism Research > 14-7 (July 2021) . - p.1357-1374 Titre : Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders Type de document : texte imprimé Auteurs : Fei CHEN, Auteur ; Hongyang ZHANG, Auteur ; Hongwei DING, Auteur ; Suiping WANG, Auteur ; Gang PENG, Auteur ; Yang ZHANG, Auteur Année de publication : 2021 Article en page(s) : p.1357-1374 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/complications  Child  Child, Preschool  Evoked Potentials  Humans  Language Development  Phonetics  Speech  Speech Perception  Asd  adult-directed speech  formant exaggeration  infant-directed speech  nonspeech Index. décimale : PER Périodiques Résumé : The presence of vowel exaggeration in infant-directed speech (IDS) may adapt to the age-appropriate demands in speech and language acquisition. Previous studies have provided behavioral evidence of atypical auditory processing towards IDS in children with autism spectrum disorders (ASD), while the underlying neurophysiological mechanisms remain unknown. This event-related potential (ERP) study investigated the neural coding of formant-exaggerated speech and nonspeech in 24 4- to 11-year-old children with ASD and 24 typically-developing (TD) peers. The EEG data were recorded using an alternating block design, in which each stimulus type (exaggerated/non-exaggerated sound) was presented with equal probability. ERP waveform analysis revealed an enhanced P1 for vowel formant exaggeration in the TD group but not in the ASD group. This speech-specific atypical processing in ASD was not found for the nonspeech stimuli which showed similar P1 enhancement in both ASD and TD groups. Moreover, the time-frequency analysis indicated that children with ASD showed differences in neural synchronization in the delta-theta bands for processing acoustic formant changes embedded in nonspeech. Collectively, the results add substantiating neurophysiological evidence (i.e., a lack of neural enhancement effect of vowel exaggeration) for atypical auditory processing of IDS in children with ASD, which may exert a negative effect on phonetic encoding and language learning. LAY SUMMARY: Atypical responses to motherese might act as a potential early marker of risk for children with ASD. This study investigated the neural responses to such socially relevant stimuli in the ASD brain, and the results suggested a lack of neural enhancement responding to the motherese even in individuals without intellectual disability. En ligne : http://dx.doi.org/10.1002/aur.2509 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449 [article] Neural coding of formant-exaggerated speech and nonspeech in children with and without autism spectrum disorders [texte imprimé] / Fei CHEN, Auteur ; Hongyang ZHANG, Auteur ; Hongwei DING, Auteur ; Suiping WANG, Auteur ; Gang PENG, Auteur ; Yang ZHANG, Auteur . - 2021 . - p.1357-1374. Langues : Anglais (eng) in Autism Research > 14-7 (July 2021) . - p.1357-1374 Mots-clés : Autism Spectrum Disorder/complications  Child  Child, Preschool  Evoked Potentials  Humans  Language Development  Phonetics  Speech  Speech Perception  Asd  adult-directed speech  formant exaggeration  infant-directed speech  nonspeech Index. décimale : PER Périodiques Résumé : The presence of vowel exaggeration in infant-directed speech (IDS) may adapt to the age-appropriate demands in speech and language acquisition. Previous studies have provided behavioral evidence of atypical auditory processing towards IDS in children with autism spectrum disorders (ASD), while the underlying neurophysiological mechanisms remain unknown. This event-related potential (ERP) study investigated the neural coding of formant-exaggerated speech and nonspeech in 24 4- to 11-year-old children with ASD and 24 typically-developing (TD) peers. The EEG data were recorded using an alternating block design, in which each stimulus type (exaggerated/non-exaggerated sound) was presented with equal probability. ERP waveform analysis revealed an enhanced P1 for vowel formant exaggeration in the TD group but not in the ASD group. This speech-specific atypical processing in ASD was not found for the nonspeech stimuli which showed similar P1 enhancement in both ASD and TD groups. Moreover, the time-frequency analysis indicated that children with ASD showed differences in neural synchronization in the delta-theta bands for processing acoustic formant changes embedded in nonspeech. Collectively, the results add substantiating neurophysiological evidence (i.e., a lack of neural enhancement effect of vowel exaggeration) for atypical auditory processing of IDS in children with ASD, which may exert a negative effect on phonetic encoding and language learning. LAY SUMMARY: Atypical responses to motherese might act as a potential early marker of risk for children with ASD. This study investigated the neural responses to such socially relevant stimuli in the ASD brain, and the results suggested a lack of neural enhancement responding to the motherese even in individuals without intellectual disability. En ligne : http://dx.doi.org/10.1002/aur.2509 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=449

Recognition of affective prosody in autism spectrum conditions: A systematic review and meta-analysis / Minyue ZHANG in Autism, 26-4 (May 2022)  

Public ISBD [article]  inAutism > 26-4 (May 2022) . - p.798-813 Titre : Recognition of affective prosody in autism spectrum conditions: A systematic review and meta-analysis Type de document : texte imprimé Auteurs : Minyue ZHANG, Auteur ; Suyun XU, Auteur ; Yu CHEN, Auteur ; Yi LIN, Auteur ; Hongwei DING, Auteur ; Yang ZHANG, Auteur Article en page(s) : p.798-813 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/psychology  Autistic Disorder  Emotions  Humans  Recognition, Psychology  Speech  Speech Perception  affective prosody  autism spectrum conditions  emotion recognition  meta-analysis Index. décimale : PER Périodiques Résumé : Differences in understanding others' emotions and attitudes through features in speech (e.g. intonation) have been observed in individuals with autism spectrum conditions, which contribute greatly to their social communication challenges. However, some studies reported that individuals with autism spectrum condition performed comparably to typically developing individuals on affective prosody recognition. Here, we provide a comprehensive review with statistical analysis of 23 existing studies on this topic to examine potential factors that could explain the discrepancies. Compared with typically developing individuals, autism spectrum condition participants generally appeared to encounter more difficulties in affective prosody recognition. But this finding was likely due to the tendency of the existing research to overly focus on deficits in autism. The affective prosody recognition performance in individuals with autism spectrum condition was closely related to the number of answer options offered to them. Moreover, the degree of difficulty in affective prosody recognition encountered by individuals with autism spectrum condition varied across emotions. The findings of this systematic review highlighted the need for further research on affective prosody recognition in autism (e.g. studies that include tonal language speakers and autism spectrum condition individuals with lower cognitive or verbal abilities). En ligne : https://dx.doi.org/10.1177/1362361321995725 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473 [article] Recognition of affective prosody in autism spectrum conditions: A systematic review and meta-analysis [texte imprimé] / Minyue ZHANG, Auteur ; Suyun XU, Auteur ; Yu CHEN, Auteur ; Yi LIN, Auteur ; Hongwei DING, Auteur ; Yang ZHANG, Auteur . - p.798-813. Langues : Anglais (eng) in Autism > 26-4 (May 2022) . - p.798-813 Mots-clés : Autism Spectrum Disorder/psychology  Autistic Disorder  Emotions  Humans  Recognition, Psychology  Speech  Speech Perception  affective prosody  autism spectrum conditions  emotion recognition  meta-analysis Index. décimale : PER Périodiques Résumé : Differences in understanding others' emotions and attitudes through features in speech (e.g. intonation) have been observed in individuals with autism spectrum conditions, which contribute greatly to their social communication challenges. However, some studies reported that individuals with autism spectrum condition performed comparably to typically developing individuals on affective prosody recognition. Here, we provide a comprehensive review with statistical analysis of 23 existing studies on this topic to examine potential factors that could explain the discrepancies. Compared with typically developing individuals, autism spectrum condition participants generally appeared to encounter more difficulties in affective prosody recognition. But this finding was likely due to the tendency of the existing research to overly focus on deficits in autism. The affective prosody recognition performance in individuals with autism spectrum condition was closely related to the number of answer options offered to them. Moreover, the degree of difficulty in affective prosody recognition encountered by individuals with autism spectrum condition varied across emotions. The findings of this systematic review highlighted the need for further research on affective prosody recognition in autism (e.g. studies that include tonal language speakers and autism spectrum condition individuals with lower cognitive or verbal abilities). En ligne : https://dx.doi.org/10.1177/1362361321995725 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=473

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