13 recherche sur le mot-clé 'Acoustic Stimulation'

Attenuated processing of vowels in the left temporal cortex predicts speech-in-noise perception deficit in children with autism / Kirill A. FADEEV in Journal of Neurodevelopmental Disorders, 16 (2024)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 16 (2024) Titre : Attenuated processing of vowels in the left temporal cortex predicts speech-in-noise perception deficit in children with autism Type de document : texte imprimé Auteurs : Kirill A. FADEEV, Auteur ; Ilacai V. ROMERO REYES, Auteur ; Dzerassa E. GOIAEVA, Auteur ; Tatiana S. OBUKHOVA, Auteur ; Tatiana M. OVSIANNIKOVA, Auteur ; Andrey O. PROKOFYEV, Auteur ; Anna M. RYTIKOVA, Auteur ; Artem Y. NOVIKOV, Auteur ; Vladimir V. KOZUNOV, Auteur ; Tatiana A. STROGANOVA, Auteur ; Elena V. OREKHOVA, Auteur Langues : Anglais (eng) Mots-clés : Humans  Male  Speech Perception/physiology  Magnetoencephalography  Child  Temporal Lobe/physiopathology  Noise  Acoustic Stimulation  Evoked Potentials, Auditory/physiology  Autism Spectrum Disorder/physiopathology/complications  Adolescent  Auditory Cortex/physiopathology  Autistic Disorder/physiopathology/complications  Auditory processing disorder  Autism spectrum disorder (ASD)  Children  Formant structure  Magnetoencephalography (MEG)  Periodicity pitch  Speech-in-noise perception  Sustained processing negativity (SPN)  Vowels  of the Moscow State University of Psychology and Education approved this  investigation. All children gave verbal consent to participate in the study and  their caregivers gave written consent to participate. Consent for publication:  All children gave verbal consent to participate in the study and their caregivers  gave written consent for publication of anonymized data. Competing interests: The  authors declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Difficulties with speech-in-noise perception in autism spectrum disorders (ASD) may be associated with impaired analysis of speech sounds, such as vowels, which represent the fundamental phoneme constituents of human speech. Vowels elicit early (< 100 ms) sustained processing negativity (SPN) in the auditory cortex that reflects the detection of an acoustic pattern based on the presence of formant structure and/or periodic envelope information (f0) and its transformation into an auditory "object". METHODS: We used magnetoencephalography (MEG) and individual brain models to investigate whether SPN is altered in children with ASD and whether this deficit is associated with impairment in their ability to perceive speech in the background of noise. MEG was recorded while boys with ASD and typically developing boys passively listened to sounds that differed in the presence/absence of f0 periodicity and formant structure. Word-in-noise perception was assessed in the separate psychoacoustic experiment using stationary and amplitude modulated noise with varying signal-to-noise ratio. RESULTS: SPN was present in both groups with similarly early onset. In children with ASD, SPN associated with processing formant structure was reduced predominantly in the cortical areas lateral to and medial to the primary auditory cortex, starting at ~ 150-200 ms after the stimulus onset. In the left hemisphere, this deficit correlated with impaired ability of children with ASD to recognize words in amplitude-modulated noise, but not in stationary noise. CONCLUSIONS: These results suggest that perceptual grouping of vowel formants into phonemes is impaired in children with ASD and that, in the left hemisphere, this deficit contributes to their difficulties with speech perception in fluctuating background noise. En ligne : https://dx.doi.org/10.1186/s11689-024-09585-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=576 [article] Attenuated processing of vowels in the left temporal cortex predicts speech-in-noise perception deficit in children with autism [texte imprimé] / Kirill A. FADEEV, Auteur ; Ilacai V. ROMERO REYES, Auteur ; Dzerassa E. GOIAEVA, Auteur ; Tatiana S. OBUKHOVA, Auteur ; Tatiana M. OVSIANNIKOVA, Auteur ; Andrey O. PROKOFYEV, Auteur ; Anna M. RYTIKOVA, Auteur ; Artem Y. NOVIKOV, Auteur ; Vladimir V. KOZUNOV, Auteur ; Tatiana A. STROGANOVA, Auteur ; Elena V. OREKHOVA, Auteur. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 16 (2024) Mots-clés : Humans  Male  Speech Perception/physiology  Magnetoencephalography  Child  Temporal Lobe/physiopathology  Noise  Acoustic Stimulation  Evoked Potentials, Auditory/physiology  Autism Spectrum Disorder/physiopathology/complications  Adolescent  Auditory Cortex/physiopathology  Autistic Disorder/physiopathology/complications  Auditory processing disorder  Autism spectrum disorder (ASD)  Children  Formant structure  Magnetoencephalography (MEG)  Periodicity pitch  Speech-in-noise perception  Sustained processing negativity (SPN)  Vowels  of the Moscow State University of Psychology and Education approved this  investigation. All children gave verbal consent to participate in the study and  their caregivers gave written consent to participate. Consent for publication:  All children gave verbal consent to participate in the study and their caregivers  gave written consent for publication of anonymized data. Competing interests: The  authors declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Difficulties with speech-in-noise perception in autism spectrum disorders (ASD) may be associated with impaired analysis of speech sounds, such as vowels, which represent the fundamental phoneme constituents of human speech. Vowels elicit early (< 100 ms) sustained processing negativity (SPN) in the auditory cortex that reflects the detection of an acoustic pattern based on the presence of formant structure and/or periodic envelope information (f0) and its transformation into an auditory "object". METHODS: We used magnetoencephalography (MEG) and individual brain models to investigate whether SPN is altered in children with ASD and whether this deficit is associated with impairment in their ability to perceive speech in the background of noise. MEG was recorded while boys with ASD and typically developing boys passively listened to sounds that differed in the presence/absence of f0 periodicity and formant structure. Word-in-noise perception was assessed in the separate psychoacoustic experiment using stationary and amplitude modulated noise with varying signal-to-noise ratio. RESULTS: SPN was present in both groups with similarly early onset. In children with ASD, SPN associated with processing formant structure was reduced predominantly in the cortical areas lateral to and medial to the primary auditory cortex, starting at ~ 150-200 ms after the stimulus onset. In the left hemisphere, this deficit correlated with impaired ability of children with ASD to recognize words in amplitude-modulated noise, but not in stationary noise. CONCLUSIONS: These results suggest that perceptual grouping of vowel formants into phonemes is impaired in children with ASD and that, in the left hemisphere, this deficit contributes to their difficulties with speech perception in fluctuating background noise. En ligne : https://dx.doi.org/10.1186/s11689-024-09585-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=576

Atypical audio-visual neural synchrony and speech processing in early autism / Xiaoyue WANG in Journal of Neurodevelopmental Disorders, 17 (2025)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 17 (2025) Titre : Atypical audio-visual neural synchrony and speech processing in early autism Type de document : texte imprimé Auteurs : Xiaoyue WANG, Auteur ; Sophie BOUTON, Auteur ; Nada KOJOVIC, Auteur ; Anne-Lise GIRAUD, Auteur ; Marie SCHAER, Auteur Langues : Anglais (eng) Mots-clés : Humans  Female  Male  Speech Perception/physiology  Autism Spectrum Disorder/physiopathology  Child, Preschool  Electroencephalography  Visual Perception/physiology  Auditory Perception/physiology  Eye-Tracking Technology  Child  Photic Stimulation  Brain/physiopathology  Acoustic Stimulation  Audio-visual  Autism spectrum disorders (ASD)  Gaze direction  Oscillation phase entrainment  Speech envelope  Visual motion  Ethics approval and consent to participate: Informed consent was obtained from  the parents of all participants prior to inclusion in the study. The research was  conducted with the ethical standards set forth by the Ethics Committee of the  Faculty of Medicine at the University of Geneva Hospital and adhered to the  principles outlined in the Declaration of Helsinki. Competing interests: The  authors declare no conflict of interest. Preprint servers: The manuscript was  deposited as a preprint in bioRxiv with the license CC BY-NC-ND 4.0. Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with Autism Spectrum disorder (ASD) often exhibit communication difficulties that may stem from basic auditory temporal integration impairment but also be aggravated by an audio-visual integration deficit, resulting in a lack of interest in face-to-face communication. This study addresses whether speech processing anomalies in young autistic children (mean age 3.09-year-old) are associated with alterations of audio-visual temporal integration. METHODS: We used high-density electroencephalography (HD-EEG) and eye tracking to record brain activity and gaze patterns in 31 children with ASD (6 females) and 33 typically developing (TD) children (11 females), while they watched cartoon videos. Neural responses to temporal audio-visual stimuli were analyzed using Temporal Response Functions model and phase analyses for audiovisual temporal coordination. RESULTS: The reconstructability of speech signals from auditory responses was reduced in children with ASD compared to TD, but despite more restricted gaze patterns in ASD it was similar for visual responses in both groups. Speech reception was most strongly affected when visual speech information was also present, an interference that was not seen in TD children. These differences were associated with a broader phase angle distribution (exceeding pi/2) in the EEG theta range in children with ASD, signaling reduced reliability of audio-visual temporal alignment. CONCLUSION: These findings show that speech processing anomalies in ASD do not stand alone and that they are associated already at a very early development stage with audio-visual imbalance with poor auditory response encoding and disrupted audio-visual temporal coordination. En ligne : https://dx.doi.org/10.1186/s11689-025-09593-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=576 [article] Atypical audio-visual neural synchrony and speech processing in early autism [texte imprimé] / Xiaoyue WANG, Auteur ; Sophie BOUTON, Auteur ; Nada KOJOVIC, Auteur ; Anne-Lise GIRAUD, Auteur ; Marie SCHAER, Auteur. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 17 (2025) Mots-clés : Humans  Female  Male  Speech Perception/physiology  Autism Spectrum Disorder/physiopathology  Child, Preschool  Electroencephalography  Visual Perception/physiology  Auditory Perception/physiology  Eye-Tracking Technology  Child  Photic Stimulation  Brain/physiopathology  Acoustic Stimulation  Audio-visual  Autism spectrum disorders (ASD)  Gaze direction  Oscillation phase entrainment  Speech envelope  Visual motion  Ethics approval and consent to participate: Informed consent was obtained from  the parents of all participants prior to inclusion in the study. The research was  conducted with the ethical standards set forth by the Ethics Committee of the  Faculty of Medicine at the University of Geneva Hospital and adhered to the  principles outlined in the Declaration of Helsinki. Competing interests: The  authors declare no conflict of interest. Preprint servers: The manuscript was  deposited as a preprint in bioRxiv with the license CC BY-NC-ND 4.0. Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with Autism Spectrum disorder (ASD) often exhibit communication difficulties that may stem from basic auditory temporal integration impairment but also be aggravated by an audio-visual integration deficit, resulting in a lack of interest in face-to-face communication. This study addresses whether speech processing anomalies in young autistic children (mean age 3.09-year-old) are associated with alterations of audio-visual temporal integration. METHODS: We used high-density electroencephalography (HD-EEG) and eye tracking to record brain activity and gaze patterns in 31 children with ASD (6 females) and 33 typically developing (TD) children (11 females), while they watched cartoon videos. Neural responses to temporal audio-visual stimuli were analyzed using Temporal Response Functions model and phase analyses for audiovisual temporal coordination. RESULTS: The reconstructability of speech signals from auditory responses was reduced in children with ASD compared to TD, but despite more restricted gaze patterns in ASD it was similar for visual responses in both groups. Speech reception was most strongly affected when visual speech information was also present, an interference that was not seen in TD children. These differences were associated with a broader phase angle distribution (exceeding pi/2) in the EEG theta range in children with ASD, signaling reduced reliability of audio-visual temporal alignment. CONCLUSION: These findings show that speech processing anomalies in ASD do not stand alone and that they are associated already at a very early development stage with audio-visual imbalance with poor auditory response encoding and disrupted audio-visual temporal coordination. En ligne : https://dx.doi.org/10.1186/s11689-025-09593-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=576

Basic and complex emotion recognition in children with autism: cross-cultural findings / Shimrit FRIDENSON-HAYO in Molecular Autism, 7 (2016)  

Public ISBD [article]  inMolecular Autism > 7 (2016) . - 52p. Titre : Basic and complex emotion recognition in children with autism: cross-cultural findings Type de document : texte imprimé Auteurs : Shimrit FRIDENSON-HAYO, Auteur ; Steve BERGGREN, Auteur ; Amandine LASSALLE, Auteur ; Shahar TAL, Auteur ; Delia PIGAT, Auteur ; Sven BÖLTE, Auteur ; Simon BARON-COHEN, Auteur ; Ofer GOLAN, Auteur Article en page(s) : 52p. Langues : Anglais (eng) Mots-clés : Acoustic Stimulation  Auditory Perception  Autism Spectrum Disorder/physiopathology/psychology  Case-Control Studies  Child  Child, Preschool  Cross-Cultural Comparison  Emotions  Facial Expression  Female  Humans  Israel  Male  Photic Stimulation  Psychological Tests  Sweden  United Kingdom  Video Recording  Visual Perception  Autism spectrum condition  Basic emotions  Complex emotions  Cross-cultural research  Emotion recognition Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with autism spectrum conditions (ASC) have emotion recognition deficits when tested in different expression modalities (face, voice, body). However, these findings usually focus on basic emotions, using one or two expression modalities. In addition, cultural similarities and differences in emotion recognition patterns in children with ASC have not been explored before. The current study examined the similarities and differences in the recognition of basic and complex emotions by children with ASC and typically developing (TD) controls across three cultures: Israel, Britain, and Sweden. METHODS: Fifty-five children with high-functioning ASC, aged 5-9, were compared to 58 TD children. On each site, groups were matched on age, sex, and IQ. Children were tested using four tasks, examining recognition of basic and complex emotions from voice recordings, videos of facial and bodily expressions, and emotional video scenarios including all modalities in context. RESULTS: Compared to their TD peers, children with ASC showed emotion recognition deficits in both basic and complex emotions on all three modalities and their integration in context. Complex emotions were harder to recognize, compared to basic emotions for the entire sample. Cross-cultural agreement was found for all major findings, with minor deviations on the face and body tasks. CONCLUSIONS: Our findings highlight the multimodal nature of ER deficits in ASC, which exist for basic as well as complex emotions and are relatively stable cross-culturally. Cross-cultural research has the potential to reveal both autism-specific universal deficits and the role that specific cultures play in the way empathy operates in different countries. En ligne : http://dx.doi.org/10.1186/s13229-016-0113-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328 [article] Basic and complex emotion recognition in children with autism: cross-cultural findings [texte imprimé] / Shimrit FRIDENSON-HAYO, Auteur ; Steve BERGGREN, Auteur ; Amandine LASSALLE, Auteur ; Shahar TAL, Auteur ; Delia PIGAT, Auteur ; Sven BÖLTE, Auteur ; Simon BARON-COHEN, Auteur ; Ofer GOLAN, Auteur . - 52p. Langues : Anglais (eng) in Molecular Autism > 7 (2016) . - 52p. Mots-clés : Acoustic Stimulation  Auditory Perception  Autism Spectrum Disorder/physiopathology/psychology  Case-Control Studies  Child  Child, Preschool  Cross-Cultural Comparison  Emotions  Facial Expression  Female  Humans  Israel  Male  Photic Stimulation  Psychological Tests  Sweden  United Kingdom  Video Recording  Visual Perception  Autism spectrum condition  Basic emotions  Complex emotions  Cross-cultural research  Emotion recognition Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with autism spectrum conditions (ASC) have emotion recognition deficits when tested in different expression modalities (face, voice, body). However, these findings usually focus on basic emotions, using one or two expression modalities. In addition, cultural similarities and differences in emotion recognition patterns in children with ASC have not been explored before. The current study examined the similarities and differences in the recognition of basic and complex emotions by children with ASC and typically developing (TD) controls across three cultures: Israel, Britain, and Sweden. METHODS: Fifty-five children with high-functioning ASC, aged 5-9, were compared to 58 TD children. On each site, groups were matched on age, sex, and IQ. Children were tested using four tasks, examining recognition of basic and complex emotions from voice recordings, videos of facial and bodily expressions, and emotional video scenarios including all modalities in context. RESULTS: Compared to their TD peers, children with ASC showed emotion recognition deficits in both basic and complex emotions on all three modalities and their integration in context. Complex emotions were harder to recognize, compared to basic emotions for the entire sample. Cross-cultural agreement was found for all major findings, with minor deviations on the face and body tasks. CONCLUSIONS: Our findings highlight the multimodal nature of ER deficits in ASC, which exist for basic as well as complex emotions and are relatively stable cross-culturally. Cross-cultural research has the potential to reveal both autism-specific universal deficits and the role that specific cultures play in the way empathy operates in different countries. En ligne : http://dx.doi.org/10.1186/s13229-016-0113-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328

Effect of presentation rate on auditory processing in Rett syndrome: event-related potential study / Anna REBREIKINA ; Victoria VOINOVA ; Olga SYSOEVA in Molecular Autism, 14 (2023)  

Public ISBD [article]  inMolecular Autism > 14 (2023) . - 40 p. Titre : Effect of presentation rate on auditory processing in Rett syndrome: event-related potential study Type de document : texte imprimé Auteurs : Anna REBREIKINA, Auteur ; Victoria VOINOVA, Auteur ; Olga SYSOEVA, Auteur Article en page(s) : 40 p. Langues : Anglais (eng) Mots-clés : Child  Humans  Child, Preschool  Adolescent  *Rett Syndrome/diagnosis/genetics  Evoked Potentials, Auditory/physiology  Acoustic Stimulation  Evoked Potentials  Electroencephalography  Auditory Perception/physiology  Auditory event-related potential (ERP)  Presentation rate  Rett syndrome  Stimulus-specific adaptation Index. décimale : PER Périodiques Résumé : BACKGROUND: Rett syndrome (RS) is a rare neurodevelopmental disorder characterized by mutations in the MECP2 gene. Patients with RS have severe motor abnormalities and are often unable to walk, use hands and speak. The preservation of perceptual and cognitive functions is hard to assess, while clinicians and care-givers point out that these patients need more time to process information than typically developing peers. Neurophysiological correlates of auditory processing have been also found to be distorted in RS, but sound presentation rates were relatively quick in these studies (stimulus onset asynchrony, SOA<1000 ms). As auditory event-related potential (ERP) is typically increased with prolongation of SOA we aim to study if SOA prolongation might compensate for observed abnormalities. METHODS: We presented a repetitive stimulus (1000 Hz) at three different SOAs of 900 ms, 1800 ms, and 3600 ms in children with RS (N=24, Mean age=9.0+3.1) and their typical development (TD) peers (N=27, Mean age=9.7+3.4) while recording 28-channels electroencephalogram, EEG. Some RS participants (n=10) did not show clear ERP and were excluded from the analysis. RESULTS: Major ERP components (here assessed as N1P1 and P2N1 peak-to-peak values) were smaller at SOA 900 than at longer SOAs in both groups, pointing out that the basic mechanism of adaptation in the auditory system is preserved in at least in RS patients with evident ERPs. At the same time the latencies of these components were significantly delayed in the RS than in TD. Moreover, late components (P2N1 and N2P2) were drastically reduced in Rett syndrome irrespective of the SOA, suggesting a largely affected mechanism of integration of upcoming sensory input with memory. Moreover, developmental stagnation of auditory ERP characterized patients with RS: absence of typical P2N1 enlargement and P1 and N1 shortening with age at least for shortest SOA. LIMITATIONS: We could not figure out the cause for the high percentage of no-evident ERP RS participants and our final sample of the RS group was rather small. Also, our study did not include a control clinical group. CONCLUSIONS: Thus, auditory ERPs inform us about abnormalities within auditory processing that cannot be fully overcomed by slowing presentation rate. En ligne : https://dx.doi.org/10.1186/s13229-023-00566-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=518 [article] Effect of presentation rate on auditory processing in Rett syndrome: event-related potential study [texte imprimé] / Anna REBREIKINA, Auteur ; Victoria VOINOVA, Auteur ; Olga SYSOEVA, Auteur . - 40 p. Langues : Anglais (eng) in Molecular Autism > 14 (2023) . - 40 p. Mots-clés : Child  Humans  Child, Preschool  Adolescent  *Rett Syndrome/diagnosis/genetics  Evoked Potentials, Auditory/physiology  Acoustic Stimulation  Evoked Potentials  Electroencephalography  Auditory Perception/physiology  Auditory event-related potential (ERP)  Presentation rate  Rett syndrome  Stimulus-specific adaptation Index. décimale : PER Périodiques Résumé : BACKGROUND: Rett syndrome (RS) is a rare neurodevelopmental disorder characterized by mutations in the MECP2 gene. Patients with RS have severe motor abnormalities and are often unable to walk, use hands and speak. The preservation of perceptual and cognitive functions is hard to assess, while clinicians and care-givers point out that these patients need more time to process information than typically developing peers. Neurophysiological correlates of auditory processing have been also found to be distorted in RS, but sound presentation rates were relatively quick in these studies (stimulus onset asynchrony, SOA<1000 ms). As auditory event-related potential (ERP) is typically increased with prolongation of SOA we aim to study if SOA prolongation might compensate for observed abnormalities. METHODS: We presented a repetitive stimulus (1000 Hz) at three different SOAs of 900 ms, 1800 ms, and 3600 ms in children with RS (N=24, Mean age=9.0+3.1) and their typical development (TD) peers (N=27, Mean age=9.7+3.4) while recording 28-channels electroencephalogram, EEG. Some RS participants (n=10) did not show clear ERP and were excluded from the analysis. RESULTS: Major ERP components (here assessed as N1P1 and P2N1 peak-to-peak values) were smaller at SOA 900 than at longer SOAs in both groups, pointing out that the basic mechanism of adaptation in the auditory system is preserved in at least in RS patients with evident ERPs. At the same time the latencies of these components were significantly delayed in the RS than in TD. Moreover, late components (P2N1 and N2P2) were drastically reduced in Rett syndrome irrespective of the SOA, suggesting a largely affected mechanism of integration of upcoming sensory input with memory. Moreover, developmental stagnation of auditory ERP characterized patients with RS: absence of typical P2N1 enlargement and P1 and N1 shortening with age at least for shortest SOA. LIMITATIONS: We could not figure out the cause for the high percentage of no-evident ERP RS participants and our final sample of the RS group was rather small. Also, our study did not include a control clinical group. CONCLUSIONS: Thus, auditory ERPs inform us about abnormalities within auditory processing that cannot be fully overcomed by slowing presentation rate. En ligne : https://dx.doi.org/10.1186/s13229-023-00566-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=518

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

Learning impairments in Fmr1(-/-)mice on an audio-visual temporal pattern discrimination task / William MOL in Journal of Neurodevelopmental Disorders, 17 (2025)  

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Lifelong Tone Language Experience does not Eliminate Deficits in Neural Encoding of Pitch in Autism Spectrum Disorder / Joseph C.Y. LAU in Journal of Autism and Developmental Disorders, 51-9 (September 2021)  

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Locus coeruleus tonic upregulation increases selectivity to inconspicuous auditory information in autistic compared to non-autistic individuals: a combined pupillometry and electroencephalography study / Nico BAST in Molecular Autism, 16 (2025)  

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Overexpression of Homer1a in the basal and lateral amygdala impairs fear conditioning and induces an autism-like social impairment / Anwesha BANERJEE in Molecular Autism, 7 (2016)  

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Phenotypic variation in neural sensory processing by deletion size, age, and sex in Phelan-McDermid syndrome / Melody Reese SMITH in Journal of Neurodevelopmental Disorders, 17 (2025)  

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