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Auteur Simon J. BENNETT |
Documents disponibles écrits par cet auteur (5)
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Facilitating sensorimotor integration via blocked practice underpins imitation learning of atypical biological kinematics in autism spectrum disorder / Nathan C. FOSTER in Autism, 24-6 (August 2020)
[article]
Titre : Facilitating sensorimotor integration via blocked practice underpins imitation learning of atypical biological kinematics in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Joe CAUSER, Auteur ; Digby ELLIOTT, Auteur ; Geoffrey BIRD, Auteur ; Spencer J. HAYES, Auteur Article en page(s) : p.1494-1505 Langues : Anglais (eng) Mots-clés : autism spectrum disorder biological motion kinematics blocked practice imitation sensorimotor integration Index. décimale : PER Périodiques Résumé : Autistic people sometimes find it difficult to copy another person's movement accurately, especially if the movement is unfamiliar or novel (e.g. to use chop sticks). In this study, we found that autistic people were generally less accurate at copying a novel movement than non-autistic people. However, by making a small adjustment and asking people to copy this movement for a set number of attempts in a predictable manner, we showed that autistic people did successfully learn to copy a new movement. This is a very important finding for autistic people because rather than thinking they cannot copy new movements, all that needs to be considered is for parents/guardians, teachers and/or support workers to make a small adjustment so that learning occurs in a predictable manner for new skills to be successfully acquired through copying. The implications from this study are wide-ranging as copying (imitation) and motor learning are important developmental processes for autistic infants and children to acquire in order to interact within the world. Therefore, practising these behaviours in the most effective way can certainly help the developmental pathway. En ligne : http://dx.doi.org/10.1177/1362361320908104 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=428
in Autism > 24-6 (August 2020) . - p.1494-1505[article] Facilitating sensorimotor integration via blocked practice underpins imitation learning of atypical biological kinematics in autism spectrum disorder [Texte imprimé et/ou numérique] / Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Joe CAUSER, Auteur ; Digby ELLIOTT, Auteur ; Geoffrey BIRD, Auteur ; Spencer J. HAYES, Auteur . - p.1494-1505.
Langues : Anglais (eng)
in Autism > 24-6 (August 2020) . - p.1494-1505
Mots-clés : autism spectrum disorder biological motion kinematics blocked practice imitation sensorimotor integration Index. décimale : PER Périodiques Résumé : Autistic people sometimes find it difficult to copy another person's movement accurately, especially if the movement is unfamiliar or novel (e.g. to use chop sticks). In this study, we found that autistic people were generally less accurate at copying a novel movement than non-autistic people. However, by making a small adjustment and asking people to copy this movement for a set number of attempts in a predictable manner, we showed that autistic people did successfully learn to copy a new movement. This is a very important finding for autistic people because rather than thinking they cannot copy new movements, all that needs to be considered is for parents/guardians, teachers and/or support workers to make a small adjustment so that learning occurs in a predictable manner for new skills to be successfully acquired through copying. The implications from this study are wide-ranging as copying (imitation) and motor learning are important developmental processes for autistic infants and children to acquire in order to interact within the world. Therefore, practising these behaviours in the most effective way can certainly help the developmental pathway. En ligne : http://dx.doi.org/10.1177/1362361320908104 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=428 Getting Off to a Shaky Start: Specificity in Planning and Feedforward Control During Sensorimotor Learning in Autism Spectrum Disorder / Nathan C. FOSTER in Autism Research, 13-3 (March 2020)
[article]
Titre : Getting Off to a Shaky Start: Specificity in Planning and Feedforward Control During Sensorimotor Learning in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Joe CAUSER, Auteur ; Digby ELLIOTT, Auteur ; Geoffrey BIRD, Auteur ; Spencer J. HAYES, Auteur Article en page(s) : p.423-435 Langues : Anglais (eng) Mots-clés : autism feedforward and feedback motor control sensorimotor learning Index. décimale : PER Périodiques Résumé : Whilst autistic individuals develop new internal action models during sensorimotor learning, the acquired movements are executed less accurately and with greater variability. Such movement profiles are related to differences in sensorimotor integration and/or altered feedforward/feedback sensorimotor control. We investigated the processes underlying sensorimotor learning in autism by quantifying accuracy and variability, relative timing, and feedforward and feedback control. Although autistic individuals demonstrated significant sensorimotor learning across trials, which was facilitated by processing knowledge-of-results feedback, motor execution was less accurate than non-autistic individuals. Kinematic analysis indicated that autistic individuals showed significantly greater spatial variability at peak acceleration, but comparable spatial variability at peak velocity. These kinematic markers suggest that autistic movement profiles are driven by specific differences in sensorimotor control processes (i.e., internal action models) associated with planning and regulating the forces required to execute the movement. The reduction of variability at peak velocity indicates intact early feedback-based sensorimotor control in autism. Understanding how feedforward and feedback-based control processes operate provides an opportunity to explore how these control processes influence the acquisition of socio-motor actions in autism. Autism Res 2020, 13: 423-435. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Autistic adults successfully learned a new movement skill by physically practising it, and using feedback about how well they had done to become more accurate. When looking at the movements in detail, autistic adults were more variable than non-autistic adults when planning (e.g., how much force to use), and performing, the movement. These differences impact how autistic individuals learn different types of movement skills, which might influence how other behaviours (e.g., imitation) are acquired that support social interaction. En ligne : http://dx.doi.org/10.1002/aur.2214 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421
in Autism Research > 13-3 (March 2020) . - p.423-435[article] Getting Off to a Shaky Start: Specificity in Planning and Feedforward Control During Sensorimotor Learning in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Nathan C. FOSTER, Auteur ; Simon J. BENNETT, Auteur ; Joe CAUSER, Auteur ; Digby ELLIOTT, Auteur ; Geoffrey BIRD, Auteur ; Spencer J. HAYES, Auteur . - p.423-435.
Langues : Anglais (eng)
in Autism Research > 13-3 (March 2020) . - p.423-435
Mots-clés : autism feedforward and feedback motor control sensorimotor learning Index. décimale : PER Périodiques Résumé : Whilst autistic individuals develop new internal action models during sensorimotor learning, the acquired movements are executed less accurately and with greater variability. Such movement profiles are related to differences in sensorimotor integration and/or altered feedforward/feedback sensorimotor control. We investigated the processes underlying sensorimotor learning in autism by quantifying accuracy and variability, relative timing, and feedforward and feedback control. Although autistic individuals demonstrated significant sensorimotor learning across trials, which was facilitated by processing knowledge-of-results feedback, motor execution was less accurate than non-autistic individuals. Kinematic analysis indicated that autistic individuals showed significantly greater spatial variability at peak acceleration, but comparable spatial variability at peak velocity. These kinematic markers suggest that autistic movement profiles are driven by specific differences in sensorimotor control processes (i.e., internal action models) associated with planning and regulating the forces required to execute the movement. The reduction of variability at peak velocity indicates intact early feedback-based sensorimotor control in autism. Understanding how feedforward and feedback-based control processes operate provides an opportunity to explore how these control processes influence the acquisition of socio-motor actions in autism. Autism Res 2020, 13: 423-435. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Autistic adults successfully learned a new movement skill by physically practising it, and using feedback about how well they had done to become more accurate. When looking at the movements in detail, autistic adults were more variable than non-autistic adults when planning (e.g., how much force to use), and performing, the movement. These differences impact how autistic individuals learn different types of movement skills, which might influence how other behaviours (e.g., imitation) are acquired that support social interaction. En ligne : http://dx.doi.org/10.1002/aur.2214 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421 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)
[article]
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
in Journal of Autism and Developmental Disorders > 46-2 (February 2016) . - p.502-513[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)
[article]
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
in Autism Research > 16-9 (September 2023) . - p.1799-1810[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)
[article]
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
in Autism Research > 11-2 (February 2018) . - p.296-304[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