Grasping Motor Impairments in Autism: Not Action Planning but Movement Execution is Deficient / Astrid M.B. STOIT in Journal of Autism and Developmental Disorders, 43-12 (December 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-12 (December 2013) . - p.2793-2806 Titre : Grasping Motor Impairments in Autism: Not Action Planning but Movement Execution is Deficient Type de document : texte imprimé Auteurs : Astrid M.B. STOIT, Auteur ; Hein T. SCHIE, Auteur ; Dorine I E. SLAATS-WILLEMSE, Auteur ; Jan K. BUITELAAR, Auteur Article en page(s) : p.2793-2806 Langues : Anglais (eng) Mots-clés : Autism  Motor deficit  Action chaining  Feedforward model  Action planning  Movement execution Index. décimale : PER Périodiques Résumé : Different views on the origin of deficits in action chaining in autism spectrum disorders (ASD) have been posited, ranging from functional impairments in action planning to internal models supporting motor control. Thirty-one children and adolescents with ASD and twenty-nine matched controls participated in a two-choice reach-to-grasp paradigm wherein participants received cueing information indicating either the object location or the required manner of grasping. A similar advantage for location cueing over grip cueing was found in both groups. Both accuracy and reaction times of the ASD group were indistinguishable from the control group. In contrast, movement times of the ASD group were significantly delayed in comparison with controls. These findings suggest that movement execution rather than action planning is deficient in ASD, and that deficits in action chaining derive from impairments in internal action models supporting action execution. En ligne : http://dx.doi.org/10.1007/s10803-013-1825-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218 [article] Grasping Motor Impairments in Autism: Not Action Planning but Movement Execution is Deficient [texte imprimé] / Astrid M.B. STOIT, Auteur ; Hein T. SCHIE, Auteur ; Dorine I E. SLAATS-WILLEMSE, Auteur ; Jan K. BUITELAAR, Auteur . - p.2793-2806. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-12 (December 2013) . - p.2793-2806 Mots-clés : Autism  Motor deficit  Action chaining  Feedforward model  Action planning  Movement execution Index. décimale : PER Périodiques Résumé : Different views on the origin of deficits in action chaining in autism spectrum disorders (ASD) have been posited, ranging from functional impairments in action planning to internal models supporting motor control. Thirty-one children and adolescents with ASD and twenty-nine matched controls participated in a two-choice reach-to-grasp paradigm wherein participants received cueing information indicating either the object location or the required manner of grasping. A similar advantage for location cueing over grip cueing was found in both groups. Both accuracy and reaction times of the ASD group were indistinguishable from the control group. In contrast, movement times of the ASD group were significantly delayed in comparison with controls. These findings suggest that movement execution rather than action planning is deficient in ASD, and that deficits in action chaining derive from impairments in internal action models supporting action execution. En ligne : http://dx.doi.org/10.1007/s10803-013-1825-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218

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)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1526-1537 Titre : Internal model deficits impair joint action in children and adolescents with autism spectrum disorders Type de document : texte imprimé 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 [article] Internal model deficits impair joint action in children and adolescents with autism spectrum disorders [texte imprimé] / 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

---

1 (1 - 2 / 2) Par page : 25 50 100 200