Face-viewing patterns predict audiovisual speech integration in autistic children / Shuyuan FENG in Autism Research, 14-12 (December 2021)  

Public ISBD [article]  inAutism Research > 14-12 (December 2021) . - p.2592-2602 Titre : Face-viewing patterns predict audiovisual speech integration in autistic children Type de document : texte imprimé Auteurs : Shuyuan FENG, Auteur ; Haoyang LU, Auteur ; Quan WANG, Auteur ; Tianbi LI, Auteur ; Jing FANG, Auteur ; Lihan CHEN, Auteur ; Li YI, Auteur Année de publication : 2021 Article en page(s) : p.2592-2602 Langues : Anglais (eng) Mots-clés : Acoustic Stimulation  Autism Spectrum Disorder/complications  Autistic Disorder/complications  Child  Child, Preschool  Female  Humans  Mouth  Speech  Speech Perception  Visual Perception  McGurk effect  atypical face-viewing patterns  audiovisual speech integration  autistic children  eye movements Index. décimale : PER Périodiques Résumé : Autistic children show audiovisual speech integration deficits, though the underlying mechanisms remain unclear. The present study examined how audiovisual speech integration deficits in autistic children could be affected by their looking patterns. We measured audiovisual speech integration in 26 autistic children and 26 typically developing (TD) children (4- to 7-year-old) employing the McGurk task (a videotaped speaker uttering phonemes with her eyes open or closed) and tracked their eye movements. We found that, compared with TD children, autistic children showed weaker audiovisual speech integration (i.e., the McGurk effect) in the open-eyes condition and similar audiovisual speech integration in the closed-eyes condition. Autistic children viewed the speaker's mouth less in non-McGurk trials than in McGurk trials in both conditions. Importantly, autistic children's weaker audiovisual speech integration could be predicted by their reduced mouth-looking time. The present study indicated that atypical face-viewing patterns could serve as one of the cognitive mechanisms of audiovisual speech integration deficits in autistic children. LAY SUMMARY: McGurk effect occurs when the visual part of a phoneme (e.g., "ga") and the auditory part of another phoneme (e.g., "ba") uttered by a speaker were integrated into a fused perception (e.g., "da"). The present study examined how McGurk effect in autistic children could be affected by their looking patterns for the speaker's face. We found that less looking time for the speaker's mouth in autistic children could predict weaker McGurk effect. As McGurk effect manifests audiovisual speech integration, our findings imply that we could improve audiovisual speech integration in autistic children by directing them to look at the speaker's mouth in future intervention. En ligne : http://dx.doi.org/10.1002/aur.2598 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450 [article] Face-viewing patterns predict audiovisual speech integration in autistic children [texte imprimé] / Shuyuan FENG, Auteur ; Haoyang LU, Auteur ; Quan WANG, Auteur ; Tianbi LI, Auteur ; Jing FANG, Auteur ; Lihan CHEN, Auteur ; Li YI, Auteur . - 2021 . - p.2592-2602. Langues : Anglais (eng) in Autism Research > 14-12 (December 2021) . - p.2592-2602 Mots-clés : Acoustic Stimulation  Autism Spectrum Disorder/complications  Autistic Disorder/complications  Child  Child, Preschool  Female  Humans  Mouth  Speech  Speech Perception  Visual Perception  McGurk effect  atypical face-viewing patterns  audiovisual speech integration  autistic children  eye movements Index. décimale : PER Périodiques Résumé : Autistic children show audiovisual speech integration deficits, though the underlying mechanisms remain unclear. The present study examined how audiovisual speech integration deficits in autistic children could be affected by their looking patterns. We measured audiovisual speech integration in 26 autistic children and 26 typically developing (TD) children (4- to 7-year-old) employing the McGurk task (a videotaped speaker uttering phonemes with her eyes open or closed) and tracked their eye movements. We found that, compared with TD children, autistic children showed weaker audiovisual speech integration (i.e., the McGurk effect) in the open-eyes condition and similar audiovisual speech integration in the closed-eyes condition. Autistic children viewed the speaker's mouth less in non-McGurk trials than in McGurk trials in both conditions. Importantly, autistic children's weaker audiovisual speech integration could be predicted by their reduced mouth-looking time. The present study indicated that atypical face-viewing patterns could serve as one of the cognitive mechanisms of audiovisual speech integration deficits in autistic children. LAY SUMMARY: McGurk effect occurs when the visual part of a phoneme (e.g., "ga") and the auditory part of another phoneme (e.g., "ba") uttered by a speaker were integrated into a fused perception (e.g., "da"). The present study examined how McGurk effect in autistic children could be affected by their looking patterns for the speaker's face. We found that less looking time for the speaker's mouth in autistic children could predict weaker McGurk effect. As McGurk effect manifests audiovisual speech integration, our findings imply that we could improve audiovisual speech integration in autistic children by directing them to look at the speaker's mouth in future intervention. En ligne : http://dx.doi.org/10.1002/aur.2598 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450

Staged Audiovisual Speech Integration and Altered Early-Stage Audiovisual Processing in Autistic Children: An EEG Investigation / Shuyuan FENG in Autism Research, 19-7 (July 2026)  

Public ISBD [article]  inAutism Research > 19-7 (July 2026) . - p.e70273 Titre : Staged Audiovisual Speech Integration and Altered Early-Stage Audiovisual Processing in Autistic Children: An EEG Investigation Type de document : texte imprimé Auteurs : Shuyuan FENG, Auteur ; Baolin LI, Auteur ; Wei NI, Auteur ; Sio Pan HOI, Auteur ; Xue LI, Auteur ; Juan ZHANG, Auteur ; Qiandong WANG, Auteur ; Lihan CHEN, Auteur ; Li YI, Auteur Article en page(s) : p.e70273 Langues : Anglais (eng) Mots-clés : audiovisual incongruence  audiovisual speech integration  autism  EEG  McGurk effect Index. décimale : PER Périodiques Résumé : ABSTRACT Autistic children exhibit difficulties in audiovisual speech integration, which are associated with their social communication challenges. The neural mechanism underlying audiovisual speech integration difficulties in autism remains unclear. We recruited 19 neurotypical (NT) children and 29 autistic children. We recorded their behavioral responses and Electroencephalography (EEG) signals to audiovisual congruent syllables, and incongruent syllables that could evoke audiovisual speech integration (i.e., McGurk effect). For the EEG analysis, we further classified autistic children into the autistic McGurk group and the autistic non-McGurk group based on their strength of audiovisual speech integration. Behaviorally, we found reduced audiovisual speech integration in autistic children. At the neural level, we found that: (1) NT children showed an early stage audiovisual processing (indexed by the N1 amplitude), which was altered in two autistic groups; (2) all three groups exhibited a successful audiovisual incongruence detection (i.e., phonological Mismatch Negativity, pMMN); (3) NT and autistic McGurk groups could successfully resolve the audiovisual incongruence (indexed by the restoration of pMMN), but the autistic non-McGurk group could not (indexed by the sustained negative amplitude). Furthermore, we found a distinct temporal decoding pattern between non-McGurk and congruent trials across groups: both NT and autistic McGurk groups exhibited early EEG decoding, whereas the autistic non-McGurk group demonstrated successful decoding during late processing stages. Audiovisual speech integration entails a three-stage process in NT children: early audiovisual processing, audiovisual incongruence detection, and audiovisual incongruence resolution. The altered early-stage processing was possibly the neural mechanism underlying the reduced audiovisual speech integration in autistic children. En ligne : https://doi.org/10.1002/aur.70273 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=589 [article] Staged Audiovisual Speech Integration and Altered Early-Stage Audiovisual Processing in Autistic Children: An EEG Investigation [texte imprimé] / Shuyuan FENG, Auteur ; Baolin LI, Auteur ; Wei NI, Auteur ; Sio Pan HOI, Auteur ; Xue LI, Auteur ; Juan ZHANG, Auteur ; Qiandong WANG, Auteur ; Lihan CHEN, Auteur ; Li YI, Auteur . - p.e70273. Langues : Anglais (eng) in Autism Research > 19-7 (July 2026) . - p.e70273 Mots-clés : audiovisual incongruence  audiovisual speech integration  autism  EEG  McGurk effect Index. décimale : PER Périodiques Résumé : ABSTRACT Autistic children exhibit difficulties in audiovisual speech integration, which are associated with their social communication challenges. The neural mechanism underlying audiovisual speech integration difficulties in autism remains unclear. We recruited 19 neurotypical (NT) children and 29 autistic children. We recorded their behavioral responses and Electroencephalography (EEG) signals to audiovisual congruent syllables, and incongruent syllables that could evoke audiovisual speech integration (i.e., McGurk effect). For the EEG analysis, we further classified autistic children into the autistic McGurk group and the autistic non-McGurk group based on their strength of audiovisual speech integration. Behaviorally, we found reduced audiovisual speech integration in autistic children. At the neural level, we found that: (1) NT children showed an early stage audiovisual processing (indexed by the N1 amplitude), which was altered in two autistic groups; (2) all three groups exhibited a successful audiovisual incongruence detection (i.e., phonological Mismatch Negativity, pMMN); (3) NT and autistic McGurk groups could successfully resolve the audiovisual incongruence (indexed by the restoration of pMMN), but the autistic non-McGurk group could not (indexed by the sustained negative amplitude). Furthermore, we found a distinct temporal decoding pattern between non-McGurk and congruent trials across groups: both NT and autistic McGurk groups exhibited early EEG decoding, whereas the autistic non-McGurk group demonstrated successful decoding during late processing stages. Audiovisual speech integration entails a three-stage process in NT children: early audiovisual processing, audiovisual incongruence detection, and audiovisual incongruence resolution. The altered early-stage processing was possibly the neural mechanism underlying the reduced audiovisual speech integration in autistic children. En ligne : https://doi.org/10.1002/aur.70273 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=589

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