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Internal model deficits impair joint action in children and adolescents with autism spectrum disorders / Astrid M.B. STOIT in Research in Autism Spectrum Disorders, 5-4 (October-December 2011)
[article]
Titre : Internal model deficits impair joint action in children and adolescents with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Astrid M.B. STOIT, Auteur ; Hein T. VAN SCHIE, Auteur ; Madelon RIEM, Auteur ; Ruud G.J. MEULENBROEK, Auteur ; Roger D. NEWMAN-NORLUND, Auteur ; Dorine I.E. SLAATS–WILLEMSE, Auteur ; Harold BEKKERING, Auteur ; Jan K. BUITELAAR, Auteur Année de publication : 2011 Article en page(s) : p.1526-1537 Langues : Anglais (eng) Mots-clés : Autism Joint action Internal models Agency Self-other differentiation Index. décimale : PER Périodiques Résumé : Qualitative differences in social interaction and communication are diagnostic hallmarks in autism spectrum disorders (ASD). The present study investigated the hypothesis that impaired social interaction in ASD reflects a deficit to internally model the behavior of a co-actor. Children and adolescents with ASD and matched controls performed a computerized bar-balancing task in a solo condition (S), and together with another individual in two joint action conditions (J2 and J4) in which they used either two or four hands to control the bar lift. Consistent with predictions derived from the ‘internal modelling hypothesis’, results from the J2 task indicated that ASD dyads were impaired in predicting the occurrence of their partner's response and failed to coordinate their actions in time. Furthermore, results from the J4 task showed that ASD participants used an adaptive strategy to disambiguate their responses from their partner's by regulating opposite sides of the bar during lifting. These findings provide empirical support of theories positing the existence of an internal modelling deficit in ASD. In addition, our findings suggest that impaired social reciprocal behavior and joint cooperative play exhibited by individuals with ASD may reflect behavioral adaptations to evade conflicting or ambiguous information in social settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.02.016 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=126
in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1526-1537[article] Internal model deficits impair joint action in children and adolescents with autism spectrum disorders [Texte imprimé et/ou numérique] / Astrid M.B. STOIT, Auteur ; Hein T. VAN SCHIE, Auteur ; Madelon RIEM, Auteur ; Ruud G.J. MEULENBROEK, Auteur ; Roger D. NEWMAN-NORLUND, Auteur ; Dorine I.E. SLAATS–WILLEMSE, Auteur ; Harold BEKKERING, Auteur ; Jan K. BUITELAAR, Auteur . - 2011 . - p.1526-1537.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1526-1537
Mots-clés : Autism Joint action Internal models Agency Self-other differentiation Index. décimale : PER Périodiques Résumé : Qualitative differences in social interaction and communication are diagnostic hallmarks in autism spectrum disorders (ASD). The present study investigated the hypothesis that impaired social interaction in ASD reflects a deficit to internally model the behavior of a co-actor. Children and adolescents with ASD and matched controls performed a computerized bar-balancing task in a solo condition (S), and together with another individual in two joint action conditions (J2 and J4) in which they used either two or four hands to control the bar lift. Consistent with predictions derived from the ‘internal modelling hypothesis’, results from the J2 task indicated that ASD dyads were impaired in predicting the occurrence of their partner's response and failed to coordinate their actions in time. Furthermore, results from the J4 task showed that ASD participants used an adaptive strategy to disambiguate their responses from their partner's by regulating opposite sides of the bar during lifting. These findings provide empirical support of theories positing the existence of an internal modelling deficit in ASD. In addition, our findings suggest that impaired social reciprocal behavior and joint cooperative play exhibited by individuals with ASD may reflect behavioral adaptations to evade conflicting or ambiguous information in social settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.02.016 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=126 Typical use of inverse dynamics in perceiving motion in autistic adults: Exploring computational principles of perception and action / S. TAKAMUKU in Autism Research, 11-7 (July 2018)
[article]
Titre : Typical use of inverse dynamics in perceiving motion in autistic adults: Exploring computational principles of perception and action Type de document : Texte imprimé et/ou numérique Auteurs : S. TAKAMUKU, Auteur ; P. A. G. FORBES, Auteur ; Antonia HAMILTON, Auteur ; H. GOMI, Auteur Article en page(s) : p.1062-1075 Langues : Anglais (eng) Mots-clés : autism delayed visual feedback internal models inverse dynamics velocity perception Index. décimale : PER Périodiques Résumé : There is increasing evidence for motor difficulties in many people with autism spectrum condition (ASC). These difficulties could be linked to differences in the use of internal models which represent relations between motions and forces/efforts. The use of these internal models may be dependent on the cerebellum which has been shown to be abnormal in autism. Several studies have examined internal computations of forward dynamics (motion from force information) in autism, but few have tested the inverse dynamics computation, that is, the determination of force-related information from motion information. Here, we examined this ability in autistic adults by measuring two perceptual biases which depend on the inverse computation. First, we asked participants whether they experienced a feeling of resistance when moving a delayed cursor, which corresponds to the inertial force of the cursor implied by its motion-both typical and ASC participants reported similar feelings of resistance. Second, participants completed a psychophysical task in which they judged the velocity of a moving hand with or without a visual cue implying inertial force. Both typical and ASC participants perceived the hand moving with the inertial cue to be slower than the hand without it. In both cases, the magnitude of the effects did not differ between the two groups. Our results suggest that the neural systems engaged in the inverse dynamics computation are preserved in ASC, at least in the observed conditions. Autism Res 2018, 11: 1062-1075. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We tested the ability to estimate force information from motion information, which arises from a specific "inverse dynamics" computation. Autistic adults and a matched control group reported feeling a resistive sensation when moving a delayed cursor and also judged a moving hand to be slower when it was pulling a load. These findings both suggest that the ability to estimate force information from motion information is intact in autism. En ligne : http://dx.doi.org/10.1002/aur.1961 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366
in Autism Research > 11-7 (July 2018) . - p.1062-1075[article] Typical use of inverse dynamics in perceiving motion in autistic adults: Exploring computational principles of perception and action [Texte imprimé et/ou numérique] / S. TAKAMUKU, Auteur ; P. A. G. FORBES, Auteur ; Antonia HAMILTON, Auteur ; H. GOMI, Auteur . - p.1062-1075.
Langues : Anglais (eng)
in Autism Research > 11-7 (July 2018) . - p.1062-1075
Mots-clés : autism delayed visual feedback internal models inverse dynamics velocity perception Index. décimale : PER Périodiques Résumé : There is increasing evidence for motor difficulties in many people with autism spectrum condition (ASC). These difficulties could be linked to differences in the use of internal models which represent relations between motions and forces/efforts. The use of these internal models may be dependent on the cerebellum which has been shown to be abnormal in autism. Several studies have examined internal computations of forward dynamics (motion from force information) in autism, but few have tested the inverse dynamics computation, that is, the determination of force-related information from motion information. Here, we examined this ability in autistic adults by measuring two perceptual biases which depend on the inverse computation. First, we asked participants whether they experienced a feeling of resistance when moving a delayed cursor, which corresponds to the inertial force of the cursor implied by its motion-both typical and ASC participants reported similar feelings of resistance. Second, participants completed a psychophysical task in which they judged the velocity of a moving hand with or without a visual cue implying inertial force. Both typical and ASC participants perceived the hand moving with the inertial cue to be slower than the hand without it. In both cases, the magnitude of the effects did not differ between the two groups. Our results suggest that the neural systems engaged in the inverse dynamics computation are preserved in ASC, at least in the observed conditions. Autism Res 2018, 11: 1062-1075. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: We tested the ability to estimate force information from motion information, which arises from a specific "inverse dynamics" computation. Autistic adults and a matched control group reported feeling a resistive sensation when moving a delayed cursor and also judged a moving hand to be slower when it was pulling a load. These findings both suggest that the ability to estimate force information from motion information is intact in autism. En ligne : http://dx.doi.org/10.1002/aur.1961 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=366 Motor deficits in autism differ from that of developmental coordination disorder / Livio FINOS ; Salam BAHMAD ; Eric KOUN ; Romeo SALEMME ; Sandrine SONIE ; Pierre FOURNERET ; Christina SCHMITZ ; Alice Catherine ROY in Autism, 28-2 (February 2024)
[article]
Titre : Motor deficits in autism differ from that of developmental coordination disorder Type de document : Texte imprimé et/ou numérique Auteurs : Livio FINOS, Auteur ; Salam BAHMAD, Auteur ; Eric KOUN, Auteur ; Romeo SALEMME, Auteur ; Sandrine SONIE, Auteur ; Pierre FOURNERET, Auteur ; Christina SCHMITZ, Auteur ; Alice Catherine ROY, Auteur Article en page(s) : p.415?432 Mots-clés : action representation autism spectrum disorder developmental coordination disorder feedback control feedforward control internal models kinematics Index. décimale : PER Périodiques Résumé : Autism spectrum disorders and developmental coordination disorders are both associated with sensorimotor impairments, yet their nature and specificity remain unknown. In order to clearly distinguish the specificity between the two disorders, children with autism spectrum disorder or developmental coordination disorder presenting the same degree of motor impairment, thus homogeneous profiles, were examined in a reach-to-displace paradigm, which allows the integrity of two main aspects of motor control (anticipation/feedforward control and movement correction/feedback control) to be separately interrogated. We manipulated children?s previous knowledge of the weight of the object they were to displace: when known, participants could anticipate the consequences of the weight when reaching for the object, prior to contact with it, thus allowing for feedforward control. Conversely, when unknown prior to contact, participants had to cope with the object weight in the displacing phase of the movement, and use feedback control. Results revealed a preserved feedforward control, but an impaired movement execution (atypical slowness) in children with developmental coordination disorder, while children with autism spectrum disorder displayed the opposite pattern with an impaired feedforward control, but a preserved feedback one. These findings shed light on how specific motor impairments might differently characterize developmental disorders and call for motor rehabilitation programmes adapted to each population. Lay abstract A vast majority of individuals with autism spectrum disorder experience impairments in motor skills. Those are often labelled as additional developmental coordination disorder despite the lack of studies comparing both disorders. Consequently, motor skills rehabilitation programmes in autism are often not specific but rather consist in standard programmes for developmental coordination disorder. Here, we compared motor performance in three groups of children: a control group, an autism spectrum disorder group and a developmental coordination disorder group. Despite similar level of motor skills evaluated by the standard movement assessment battery for children, in a Reach-to-Displace Task, children with autism spectrum disorder and developmental coordination disorder showed specific motor control deficits. Children with autism spectrum disorder failed to anticipate the object properties, but could correct their movement as well as typically developing children. In contrast, children with developmental coordination disorder were atypically slow, but showed a spared anticipation. Our study has important clinical implications as motor skills rehabilitations are crucial to both populations. Specifically, our findings suggest that individuals with autism spectrum disorder would benefit from therapies aiming at improving their anticipation, maybe through the support of their preserved representations and use of sensory information. Conversely, individuals with developmental coordination disorder would benefit from a focus on the use of sensory information in a timely fashion. En ligne : https://dx.doi.org/10.1177/13623613231171980 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519
in Autism > 28-2 (February 2024) . - p.415?432[article] Motor deficits in autism differ from that of developmental coordination disorder [Texte imprimé et/ou numérique] / Livio FINOS, Auteur ; Salam BAHMAD, Auteur ; Eric KOUN, Auteur ; Romeo SALEMME, Auteur ; Sandrine SONIE, Auteur ; Pierre FOURNERET, Auteur ; Christina SCHMITZ, Auteur ; Alice Catherine ROY, Auteur . - p.415?432.
in Autism > 28-2 (February 2024) . - p.415?432
Mots-clés : action representation autism spectrum disorder developmental coordination disorder feedback control feedforward control internal models kinematics Index. décimale : PER Périodiques Résumé : Autism spectrum disorders and developmental coordination disorders are both associated with sensorimotor impairments, yet their nature and specificity remain unknown. In order to clearly distinguish the specificity between the two disorders, children with autism spectrum disorder or developmental coordination disorder presenting the same degree of motor impairment, thus homogeneous profiles, were examined in a reach-to-displace paradigm, which allows the integrity of two main aspects of motor control (anticipation/feedforward control and movement correction/feedback control) to be separately interrogated. We manipulated children?s previous knowledge of the weight of the object they were to displace: when known, participants could anticipate the consequences of the weight when reaching for the object, prior to contact with it, thus allowing for feedforward control. Conversely, when unknown prior to contact, participants had to cope with the object weight in the displacing phase of the movement, and use feedback control. Results revealed a preserved feedforward control, but an impaired movement execution (atypical slowness) in children with developmental coordination disorder, while children with autism spectrum disorder displayed the opposite pattern with an impaired feedforward control, but a preserved feedback one. These findings shed light on how specific motor impairments might differently characterize developmental disorders and call for motor rehabilitation programmes adapted to each population. Lay abstract A vast majority of individuals with autism spectrum disorder experience impairments in motor skills. Those are often labelled as additional developmental coordination disorder despite the lack of studies comparing both disorders. Consequently, motor skills rehabilitation programmes in autism are often not specific but rather consist in standard programmes for developmental coordination disorder. Here, we compared motor performance in three groups of children: a control group, an autism spectrum disorder group and a developmental coordination disorder group. Despite similar level of motor skills evaluated by the standard movement assessment battery for children, in a Reach-to-Displace Task, children with autism spectrum disorder and developmental coordination disorder showed specific motor control deficits. Children with autism spectrum disorder failed to anticipate the object properties, but could correct their movement as well as typically developing children. In contrast, children with developmental coordination disorder were atypically slow, but showed a spared anticipation. Our study has important clinical implications as motor skills rehabilitations are crucial to both populations. Specifically, our findings suggest that individuals with autism spectrum disorder would benefit from therapies aiming at improving their anticipation, maybe through the support of their preserved representations and use of sensory information. Conversely, individuals with developmental coordination disorder would benefit from a focus on the use of sensory information in a timely fashion. En ligne : https://dx.doi.org/10.1177/13623613231171980 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519