Higher or lower? Interpersonal behavioral and neural synchronization of movement imitation in autistic children / Wenjun ZHANG ; Liu CHEN ; Xiaorui DENG ; Kaiyun LI ; Fengxun LIN ; Fanlu JIA ; Shuhua SU ; Wanzhi TANG in Autism Research, 17-9 (September 2024)  

Public ISBD [article]  inAutism Research > 17-9 (September 2024) . - p.1876-1901 Titre : Higher or lower? Interpersonal behavioral and neural synchronization of movement imitation in autistic children Type de document : texte imprimé Auteurs : Wenjun ZHANG, Auteur ; Liu CHEN, Auteur ; Xiaorui DENG, Auteur ; Kaiyun LI, Auteur ; Fengxun LIN, Auteur ; Fanlu JIA, Auteur ; Shuhua SU, Auteur ; Wanzhi TANG, Auteur Article en page(s) : p.1876-1901 Langues : Anglais (eng) Mots-clés : Autism  movement imitation  interpersonal neural synchronization  functional near-infrared spectroscopy hyperscanning  an intra- and interindividual imitation mechanism model Index. décimale : PER Périodiques Résumé : Abstract How well autistic children can imitate movements and how their brain activity synchronizes with the person they are imitating have been understudied. The current study adopted functional near-infrared spectroscopy (fNIRS) hyperscanning and employed a task involving real interactions involving meaningful and meaningless movement imitation to explore the fundamental nature of imitation as a dynamic and interactive process. Experiment 1 explored meaningful and meaningless gesture imitation. The results revealed that autistic children exhibited lower imitation accuracy and behavioral synchrony than non-autistic children when imitating both meaningful and meaningless gestures. Specifically, compared to non-autistic children, autistic children displayed significantly higher interpersonal neural synchronization (INS) in the right inferior parietal lobule (r-IPL) (channel 12) when imitating meaningful gestures but lower INS when imitating meaningless gestures. Experiment 2 further investigated the imitation of four types of meaningless movements (orofacial movements, transitive movements, limb movements, and gestures). The results revealed that across all four movement types, autistic children exhibited significantly lower imitation accuracy, behavioral synchrony, and INS in the r-IPL (channel 12) than non-autistic children. This study is the first to identify INS as a biomarker of movement imitation difficulties in autistic individuals. Furthermore, an intra- and interindividual imitation mechanism model was proposed to explain the underlying causes of movement imitation difficulties in autistic individuals. En ligne : https://doi.org/10.1002/aur.3205 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535 [article] Higher or lower? Interpersonal behavioral and neural synchronization of movement imitation in autistic children [texte imprimé] / Wenjun ZHANG, Auteur ; Liu CHEN, Auteur ; Xiaorui DENG, Auteur ; Kaiyun LI, Auteur ; Fengxun LIN, Auteur ; Fanlu JIA, Auteur ; Shuhua SU, Auteur ; Wanzhi TANG, Auteur . - p.1876-1901. Langues : Anglais (eng) in Autism Research > 17-9 (September 2024) . - p.1876-1901 Mots-clés : Autism  movement imitation  interpersonal neural synchronization  functional near-infrared spectroscopy hyperscanning  an intra- and interindividual imitation mechanism model Index. décimale : PER Périodiques Résumé : Abstract How well autistic children can imitate movements and how their brain activity synchronizes with the person they are imitating have been understudied. The current study adopted functional near-infrared spectroscopy (fNIRS) hyperscanning and employed a task involving real interactions involving meaningful and meaningless movement imitation to explore the fundamental nature of imitation as a dynamic and interactive process. Experiment 1 explored meaningful and meaningless gesture imitation. The results revealed that autistic children exhibited lower imitation accuracy and behavioral synchrony than non-autistic children when imitating both meaningful and meaningless gestures. Specifically, compared to non-autistic children, autistic children displayed significantly higher interpersonal neural synchronization (INS) in the right inferior parietal lobule (r-IPL) (channel 12) when imitating meaningful gestures but lower INS when imitating meaningless gestures. Experiment 2 further investigated the imitation of four types of meaningless movements (orofacial movements, transitive movements, limb movements, and gestures). The results revealed that across all four movement types, autistic children exhibited significantly lower imitation accuracy, behavioral synchrony, and INS in the r-IPL (channel 12) than non-autistic children. This study is the first to identify INS as a biomarker of movement imitation difficulties in autistic individuals. Furthermore, an intra- and interindividual imitation mechanism model was proposed to explain the underlying causes of movement imitation difficulties in autistic individuals. En ligne : https://doi.org/10.1002/aur.3205 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=535

A three‑level meta‑analysis of interpersonal motor synchronization in autism spectrum disorder: The role of methodology, participant, and interaction partner characteristics / Wenjun ZHANG in Research in Autism, 131 (March 2026)  

Public ISBD [article]  inResearch in Autism > 131 (March 2026) . - 202820 Titre : A three‑level meta‑analysis of interpersonal motor synchronization in autism spectrum disorder: The role of methodology, participant, and interaction partner characteristics Type de document : texte imprimé Auteurs : Wenjun ZHANG, Auteur ; Xiaoou BU, Auteur ; Jianmei XING, Auteur ; Yawen DU, Auteur ; Chunhui WANG, Auteur ; Yunxiang ZHANG, Auteur ; Pei WANG, Auteur Article en page(s) : 202820 Langues : Anglais (eng) Mots-clés : Interpersonal motor synchronization  Autism spectrum disorders  ASD  Three‑level meta‑analysis Index. décimale : PER Périodiques Résumé : Background Interpersonal motor synchronization (IMS)—the time- and form-aligned movements of individuals in a social interaction—plays a fundamental role in social development. Individuals with autism spectrum disorder (ASD) are often reported to exhibit reduced IMS compared to neurotypical (NT) individuals, yet findings remain inconsistent, and contributing moderators are not well understood. This meta-analysis aimed to assess whether, and under what conditions, IMS differs between ASD and NT groups. Methods A systematic search of five databases (Web of Science, PubMed, ScienceDirect, DART-Europe, and ProQuest) up to September 30, 2025, identified 28 studies comparing continuous IMS outcomes between ASD and NT groups. A three-level random-effects meta-analysis using Hedges’ g was conducted. Moderator analyses examined methodology-related (task type, measurement modality, muscle group, intentionality, methodological quality), participant-related (age, IQ, sex), and partner-related (neurotype, age, familiarity) factors. Study quality, publication bias, and sensitivity were also assessed. Results A medium-to-large effect size (g = –0.78) indicated significantly reduced IMS in ASD, especially in non-joint action tasks, lower-extremity movements and behavioral coding measures. Participant- or partner-related factors showed no significant moderation. Study quality was moderate to high. Detected publication bias did not meaningfully affect the overall findings, which were robust across sensitivity analyses. Conclusions Reduced IMS in ASD are robust across participant- and partner-related characteristics but sensitive to task types, measurement modalities, and muscle groups. These findings provide varying types and degrees of support for multiple potential mechanisms, and highlight IMS in ASD as a promising direction for future research aimed at developing sensitive assessments and interventions. En ligne : https://doi.org/10.1016/j.reia.2026.202820 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=581 [article] A three‑level meta‑analysis of interpersonal motor synchronization in autism spectrum disorder: The role of methodology, participant, and interaction partner characteristics [texte imprimé] / Wenjun ZHANG, Auteur ; Xiaoou BU, Auteur ; Jianmei XING, Auteur ; Yawen DU, Auteur ; Chunhui WANG, Auteur ; Yunxiang ZHANG, Auteur ; Pei WANG, Auteur . - 202820. Langues : Anglais (eng) in Research in Autism > 131 (March 2026) . - 202820 Mots-clés : Interpersonal motor synchronization  Autism spectrum disorders  ASD  Three‑level meta‑analysis Index. décimale : PER Périodiques Résumé : Background Interpersonal motor synchronization (IMS)—the time- and form-aligned movements of individuals in a social interaction—plays a fundamental role in social development. Individuals with autism spectrum disorder (ASD) are often reported to exhibit reduced IMS compared to neurotypical (NT) individuals, yet findings remain inconsistent, and contributing moderators are not well understood. This meta-analysis aimed to assess whether, and under what conditions, IMS differs between ASD and NT groups. Methods A systematic search of five databases (Web of Science, PubMed, ScienceDirect, DART-Europe, and ProQuest) up to September 30, 2025, identified 28 studies comparing continuous IMS outcomes between ASD and NT groups. A three-level random-effects meta-analysis using Hedges’ g was conducted. Moderator analyses examined methodology-related (task type, measurement modality, muscle group, intentionality, methodological quality), participant-related (age, IQ, sex), and partner-related (neurotype, age, familiarity) factors. Study quality, publication bias, and sensitivity were also assessed. Results A medium-to-large effect size (g = –0.78) indicated significantly reduced IMS in ASD, especially in non-joint action tasks, lower-extremity movements and behavioral coding measures. Participant- or partner-related factors showed no significant moderation. Study quality was moderate to high. Detected publication bias did not meaningfully affect the overall findings, which were robust across sensitivity analyses. Conclusions Reduced IMS in ASD are robust across participant- and partner-related characteristics but sensitive to task types, measurement modalities, and muscle groups. These findings provide varying types and degrees of support for multiple potential mechanisms, and highlight IMS in ASD as a promising direction for future research aimed at developing sensitive assessments and interventions. En ligne : https://doi.org/10.1016/j.reia.2026.202820 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=581

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