Low Fidelity Imitation of Atypical Biological Kinematics in Autism Spectrum Disorders Is Modulated by Self-Generated Selective Attention / Spencer J. HAYES in Journal of Autism and Developmental Disorders, 46-2 (February 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-2 (February 2016) . - p.502-513 Titre : Low Fidelity Imitation of Atypical Biological Kinematics in Autism Spectrum Disorders Is Modulated by Self-Generated Selective Attention Type de document : Texte imprimé et/ou numérique Auteurs : Spencer J. HAYES, Auteur ; Matthew ANDREW, Auteur ; Digby ELLIOTT, Auteur ; Emma GOWEN, Auteur ; Simon J. BENNETT, Auteur Année de publication : 2016 Article en page(s) : p.502-513 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Imitation  Biological motion kinematics  Attention Index. décimale : PER Périodiques Résumé : We examined whether adults with autism had difficulty imitating atypical biological kinematics. To reduce the impact that higher-order processes have on imitation we used a non-human agent model to control social attention, and removed end-state target goals in half of the trials to minimise goal-directed attention. Findings showed that only neurotypical adults imitated atypical biological kinematics. Adults with autism did, however, become significantly more accurate at imitating movement time. This confirmed they engaged in the task, and that sensorimotor adaptation was self-regulated. The attentional bias to movement time suggests the attenuation in imitating kinematics might be a compensatory strategy due to deficits in lower-level visuomotor processes associated with self-other mapping, or selective attention modulated the processes that represent biological kinematics. En ligne : http://dx.doi.org/10.1007/s10803-015-2588-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=280 [article] Low Fidelity Imitation of Atypical Biological Kinematics in Autism Spectrum Disorders Is Modulated by Self-Generated Selective Attention [Texte imprimé et/ou numérique] / Spencer J. HAYES, Auteur ; Matthew ANDREW, Auteur ; Digby ELLIOTT, Auteur ; Emma GOWEN, Auteur ; Simon J. BENNETT, Auteur . - 2016 . - p.502-513. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-2 (February 2016) . - p.502-513 Mots-clés : Autism spectrum disorders  Imitation  Biological motion kinematics  Attention Index. décimale : PER Périodiques Résumé : We examined whether adults with autism had difficulty imitating atypical biological kinematics. To reduce the impact that higher-order processes have on imitation we used a non-human agent model to control social attention, and removed end-state target goals in half of the trials to minimise goal-directed attention. Findings showed that only neurotypical adults imitated atypical biological kinematics. Adults with autism did, however, become significantly more accurate at imitating movement time. This confirmed they engaged in the task, and that sensorimotor adaptation was self-regulated. The attentional bias to movement time suggests the attenuation in imitating kinematics might be a compensatory strategy due to deficits in lower-level visuomotor processes associated with self-other mapping, or selective attention modulated the processes that represent biological kinematics. En ligne : http://dx.doi.org/10.1007/s10803-015-2588-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=280

Observational learning of atypical biological kinematics in autism / Nathan C. FOSTER in Autism Research, 16-9 (September 2023)  

Public ISBD [article]  inAutism Research > 16-9 (September 2023) . - p.1799-1810 Titre : Observational learning of atypical biological kinematics in autism Type de document : Texte imprimé et/ou numérique Auteurs : Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Kiri PULLAR, Auteur ; Joe CAUSER, Auteur ; Cristina BECCHIO, Auteur ; Daniel P. CLOWES, Auteur ; Spencer J. HAYES, Auteur Article en page(s) : p.1799-1810 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract Observing and voluntarily imitating the biological kinematics displayed by a model underpins the acquisition of new motor skills via sensorimotor processes linking perception with action. Differences in voluntary imitation in autism could be related to sensorimotor processing activity during action-observation of biological motion, as well as how sensorimotor integration processing occurs across imitation attempts. Using an observational practice protocol, which minimized the active contribution of the peripheral sensorimotor system, we examined the contribution of sensorimotor processing during action-observation. The data showed that autistic participants imitated both the temporal duration and atypical kinematic profile of the observed movement with a similar level of accuracy as neurotypical participants. These findings suggest the lower-level perception-action processes responsible for encoding biological kinematics during the action-observation phase of imitation are operational in autism. As there was no task-specific engagement of the peripheral sensorimotor system during observational practice, imitation difficulties in autism are most likely underpinned by sensorimotor integration issues related to the processing of efferent and (re)afferent sensorimotor information during trial-to-trial motor execution. En ligne : https://doi.org/10.1002/aur.3002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510 [article] Observational learning of atypical biological kinematics in autism [Texte imprimé et/ou numérique] / Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Kiri PULLAR, Auteur ; Joe CAUSER, Auteur ; Cristina BECCHIO, Auteur ; Daniel P. CLOWES, Auteur ; Spencer J. HAYES, Auteur . - p.1799-1810. Langues : Anglais (eng) in Autism Research > 16-9 (September 2023) . - p.1799-1810 Index. décimale : PER Périodiques Résumé : Abstract Observing and voluntarily imitating the biological kinematics displayed by a model underpins the acquisition of new motor skills via sensorimotor processes linking perception with action. Differences in voluntary imitation in autism could be related to sensorimotor processing activity during action-observation of biological motion, as well as how sensorimotor integration processing occurs across imitation attempts. Using an observational practice protocol, which minimized the active contribution of the peripheral sensorimotor system, we examined the contribution of sensorimotor processing during action-observation. The data showed that autistic participants imitated both the temporal duration and atypical kinematic profile of the observed movement with a similar level of accuracy as neurotypical participants. These findings suggest the lower-level perception-action processes responsible for encoding biological kinematics during the action-observation phase of imitation are operational in autism. As there was no task-specific engagement of the peripheral sensorimotor system during observational practice, imitation difficulties in autism are most likely underpinned by sensorimotor integration issues related to the processing of efferent and (re)afferent sensorimotor information during trial-to-trial motor execution. En ligne : https://doi.org/10.1002/aur.3002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510

Sensorimotor learning and associated visual perception are intact but unrelated in autism spectrum disorder / Spencer J. HAYES in Autism Research, 11-2 (February 2018)  

Public ISBD [article]  inAutism Research > 11-2 (February 2018) . - p.296-304 Titre : Sensorimotor learning and associated visual perception are intact but unrelated in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Spencer J. HAYES, Auteur ; Matthew ANDREW, Auteur ; Nathan C. FOSTER, Auteur ; Digby ELLIOTT, Auteur ; Emma GOWEN, Auteur ; Simon J. BENNETT, Auteur Année de publication : 2018 Article en page(s) : p.296-304 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Humans show an astonishing capability to learn sensorimotor behaviours. However, data from sensorimotor learning experiments suggest the integration of efferent sensorimotor commands, afferent sensorimotor information, and visual consequences of a performed action during learning is different in autism, leading to atypical representation of internal action models. Here, we investigated the generalization of a sensorimotor internal action model formed during sensorimotor learning to a different, but associated, visual perception task. Although motor timing was generally less accurate in adults with autism, following practice with feedback both autistic adults, and controls, significantly improved performance of the movement sequence timing task by reducing timing error. In a subsequent perception task, both groups demonstrated similar temporal?discrimination accuracy (autism?=?75%; control?=?76%). Significant correlations between motor timing error, and temporal?discrimination during a perception task, was found for controls. No significant correlations were found for autistic adults. Our findings indicate that autistic adults demonstrated adaptation by reducing motor timing error through sensorimotor learning. However, the finding of significant correlations between motor timing error and temporal?discrimination accuracy in the control group only suggests sensorimotor processes underpinning internal action model formation operate differently in autism. Autism Res 2018, 11: 296–304. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary We showed autistic adults learned a new motor skill, and visually judged moving objects, to a similar level of accuracy as a control group. Unlike the control group, there was no relationship between how well autistic adults learned the motor skill, and how well they judged objects. The lack of a relationship might be one of the reasons autistic adults interact differently in the social world. En ligne : https://doi.org/10.1002/aur.1882 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=334 [article] Sensorimotor learning and associated visual perception are intact but unrelated in autism spectrum disorder [Texte imprimé et/ou numérique] / Spencer J. HAYES, Auteur ; Matthew ANDREW, Auteur ; Nathan C. FOSTER, Auteur ; Digby ELLIOTT, Auteur ; Emma GOWEN, Auteur ; Simon J. BENNETT, Auteur . - 2018 . - p.296-304. Langues : Anglais (eng) in Autism Research > 11-2 (February 2018) . - p.296-304 Index. décimale : PER Périodiques Résumé : Humans show an astonishing capability to learn sensorimotor behaviours. However, data from sensorimotor learning experiments suggest the integration of efferent sensorimotor commands, afferent sensorimotor information, and visual consequences of a performed action during learning is different in autism, leading to atypical representation of internal action models. Here, we investigated the generalization of a sensorimotor internal action model formed during sensorimotor learning to a different, but associated, visual perception task. Although motor timing was generally less accurate in adults with autism, following practice with feedback both autistic adults, and controls, significantly improved performance of the movement sequence timing task by reducing timing error. In a subsequent perception task, both groups demonstrated similar temporal?discrimination accuracy (autism?=?75%; control?=?76%). Significant correlations between motor timing error, and temporal?discrimination during a perception task, was found for controls. No significant correlations were found for autistic adults. Our findings indicate that autistic adults demonstrated adaptation by reducing motor timing error through sensorimotor learning. However, the finding of significant correlations between motor timing error and temporal?discrimination accuracy in the control group only suggests sensorimotor processes underpinning internal action model formation operate differently in autism. Autism Res 2018, 11: 296–304. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary We showed autistic adults learned a new motor skill, and visually judged moving objects, to a similar level of accuracy as a control group. Unlike the control group, there was no relationship between how well autistic adults learned the motor skill, and how well they judged objects. The lack of a relationship might be one of the reasons autistic adults interact differently in the social world. En ligne : https://doi.org/10.1002/aur.1882 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=334

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