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What Are You Doing With That Object? Comparing the Neural Responses of Action Understanding in Adolescents With and Without Autism / J. J. POKORNY in Journal of Autism and Developmental Disorders, 48-3 (March 2018)
[article]
Titre : What Are You Doing With That Object? Comparing the Neural Responses of Action Understanding in Adolescents With and Without Autism Type de document : Texte imprimé et/ou numérique Auteurs : J. J. POKORNY, Auteur ; N. V. HATT, Auteur ; Sally J ROGERS, Auteur ; S. M. RIVERA, Auteur Année de publication : 2018 Article en page(s) : p.809-823 Langues : Anglais (eng) Mots-clés : Action understanding Autism Intention Mentalizing fMRI Index. décimale : PER Périodiques Résumé : Understanding another's actions, including what they are doing and why they are doing it, can be difficult for individuals with autism spectrum disorder (ASD). This understanding is supported by the action observation (AON) and mentalizing (MZN) networks, as well as the superior temporal sulcus. We examined these areas in children with ASD and typically developing controls by having participants view eating and placing actions performed in conventional and unconventional ways while functional magnetic resonance images were collected. We found an effect of action-type, but not conventionality, in both groups, and a between groups difference only when viewing conventional eating actions. Findings suggest there are not global AON/MZN deficits in ASD, and observing unconventional actions may not spontaneously activate the MZN. En ligne : https://doi.org/10.1007/s10803-017-3338-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=338
in Journal of Autism and Developmental Disorders > 48-3 (March 2018) . - p.809-823[article] What Are You Doing With That Object? Comparing the Neural Responses of Action Understanding in Adolescents With and Without Autism [Texte imprimé et/ou numérique] / J. J. POKORNY, Auteur ; N. V. HATT, Auteur ; Sally J ROGERS, Auteur ; S. M. RIVERA, Auteur . - 2018 . - p.809-823.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-3 (March 2018) . - p.809-823
Mots-clés : Action understanding Autism Intention Mentalizing fMRI Index. décimale : PER Périodiques Résumé : Understanding another's actions, including what they are doing and why they are doing it, can be difficult for individuals with autism spectrum disorder (ASD). This understanding is supported by the action observation (AON) and mentalizing (MZN) networks, as well as the superior temporal sulcus. We examined these areas in children with ASD and typically developing controls by having participants view eating and placing actions performed in conventional and unconventional ways while functional magnetic resonance images were collected. We found an effect of action-type, but not conventionality, in both groups, and a between groups difference only when viewing conventional eating actions. Findings suggest there are not global AON/MZN deficits in ASD, and observing unconventional actions may not spontaneously activate the MZN. En ligne : https://doi.org/10.1007/s10803-017-3338-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=338 The Action Observation System when Observing Hand Actions in Autism and Typical Development / Jennifer J. POKORNY in Autism Research, 8-3 (June 2015)
[article]
Titre : The Action Observation System when Observing Hand Actions in Autism and Typical Development Type de document : Texte imprimé et/ou numérique Auteurs : Jennifer J. POKORNY, Auteur ; Naomi V. HATT, Auteur ; Costanza COLOMBI, Auteur ; Giacomo VIVANTI, Auteur ; Sally J ROGERS, Auteur ; Susan M. RIVERA, Auteur Article en page(s) : p.284-296 Langues : Anglais (eng) Mots-clés : mirror neurons fMRI imitation action understanding autism Index. décimale : PER Périodiques Résumé : Social impairments in individuals with autism spectrum disorders (ASD) may be in part due to difficulty perceiving and recognizing the actions of others. Evidence from imitation studies, which involves both observation and execution of an action, suggests differences, in individuals with ASD, between the ability to imitate goal-directed actions involving objects (transitive actions) and the ability to imitate actions that do not involve objects (intransitive actions). In the present study, we examined whether there were differences in how ASD adolescents encoded transitive and intransitive actions compared to typically developing (TD) adolescents, by having participants view videos of a hand reaching across a screen toward an object or to where an object would be while functional magnetic resonance images were collected. Analyses focused on areas within the action observation network (AON), which is activated during the observation of actions performed by others. We hypothesized that the AON would differentiate transitive from intransitive actions only in the ASD group. However, results revealed that object presence modulated activity in the right inferior frontal gyrus and supramarginal gyrus of the TD group, a differentiation that was not seen in the ASD group. Furthermore, there were no significant group differences between the TD and ASD groups in any of the conditions. This suggests that there is not a global deficit of the AON in individuals with ASD while observing transitive and intransitive actions. En ligne : http://dx.doi.org/10.1002/aur.1445 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261
in Autism Research > 8-3 (June 2015) . - p.284-296[article] The Action Observation System when Observing Hand Actions in Autism and Typical Development [Texte imprimé et/ou numérique] / Jennifer J. POKORNY, Auteur ; Naomi V. HATT, Auteur ; Costanza COLOMBI, Auteur ; Giacomo VIVANTI, Auteur ; Sally J ROGERS, Auteur ; Susan M. RIVERA, Auteur . - p.284-296.
Langues : Anglais (eng)
in Autism Research > 8-3 (June 2015) . - p.284-296
Mots-clés : mirror neurons fMRI imitation action understanding autism Index. décimale : PER Périodiques Résumé : Social impairments in individuals with autism spectrum disorders (ASD) may be in part due to difficulty perceiving and recognizing the actions of others. Evidence from imitation studies, which involves both observation and execution of an action, suggests differences, in individuals with ASD, between the ability to imitate goal-directed actions involving objects (transitive actions) and the ability to imitate actions that do not involve objects (intransitive actions). In the present study, we examined whether there were differences in how ASD adolescents encoded transitive and intransitive actions compared to typically developing (TD) adolescents, by having participants view videos of a hand reaching across a screen toward an object or to where an object would be while functional magnetic resonance images were collected. Analyses focused on areas within the action observation network (AON), which is activated during the observation of actions performed by others. We hypothesized that the AON would differentiate transitive from intransitive actions only in the ASD group. However, results revealed that object presence modulated activity in the right inferior frontal gyrus and supramarginal gyrus of the TD group, a differentiation that was not seen in the ASD group. Furthermore, there were no significant group differences between the TD and ASD groups in any of the conditions. This suggests that there is not a global deficit of the AON in individuals with ASD while observing transitive and intransitive actions. En ligne : http://dx.doi.org/10.1002/aur.1445 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=261 Predictive Gaze During Observation of Irrational Actions in Adults with Autism Spectrum Conditions / L. E. MARSH in Journal of Autism and Developmental Disorders, 45-1 (January 2015)
[article]
Titre : Predictive Gaze During Observation of Irrational Actions in Adults with Autism Spectrum Conditions Type de document : Texte imprimé et/ou numérique Auteurs : L. E. MARSH, Auteur ; A. PEARSON, Auteur ; D. ROPAR, Auteur ; Antonia HAMILTON, Auteur Article en page(s) : p.245-261 Langues : Anglais (eng) Mots-clés : Autism Action understanding Rationality Eye tracking Social motivation Index. décimale : PER Périodiques Résumé : Understanding irrational actions may require the observer to make mental state inferences about why an action was performed. Individuals with autism spectrum conditions (ASC) have well documented difficulties with mentalizing; however, the degree to which rationality understanding is impaired in autism is not yet clear. The present study uses eye-tracking to measure online understanding of action rationality in individuals with ASC. Twenty adults with ASC and 20 typically developing controls, matched for age and IQ watched movies of rational and irrational actions while their eye movements were recorded. Measures of looking time, scan path and saccade latency were calculated. Results from looking time and scan path analyses demonstrate that participants with ASC have reduced visual attention to salient action features such as the action goal and the hand performing the action, regardless of action rationality. However, when participants with ASC do attend to these features, they are able to make anticipatory goal saccades as quickly as typically developing controls. Taken together these results indicate that individuals with autism have reduced attention to observed actions, but when attention is maintained, goal prediction is typical. We conclude that the basic mechanisms of action understanding are intact in individuals with ASC although there may be impairment in the top-down, social modulation of eye movements. En ligne : http://dx.doi.org/10.1007/s10803-014-2215-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258
in Journal of Autism and Developmental Disorders > 45-1 (January 2015) . - p.245-261[article] Predictive Gaze During Observation of Irrational Actions in Adults with Autism Spectrum Conditions [Texte imprimé et/ou numérique] / L. E. MARSH, Auteur ; A. PEARSON, Auteur ; D. ROPAR, Auteur ; Antonia HAMILTON, Auteur . - p.245-261.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-1 (January 2015) . - p.245-261
Mots-clés : Autism Action understanding Rationality Eye tracking Social motivation Index. décimale : PER Périodiques Résumé : Understanding irrational actions may require the observer to make mental state inferences about why an action was performed. Individuals with autism spectrum conditions (ASC) have well documented difficulties with mentalizing; however, the degree to which rationality understanding is impaired in autism is not yet clear. The present study uses eye-tracking to measure online understanding of action rationality in individuals with ASC. Twenty adults with ASC and 20 typically developing controls, matched for age and IQ watched movies of rational and irrational actions while their eye movements were recorded. Measures of looking time, scan path and saccade latency were calculated. Results from looking time and scan path analyses demonstrate that participants with ASC have reduced visual attention to salient action features such as the action goal and the hand performing the action, regardless of action rationality. However, when participants with ASC do attend to these features, they are able to make anticipatory goal saccades as quickly as typically developing controls. Taken together these results indicate that individuals with autism have reduced attention to observed actions, but when attention is maintained, goal prediction is typical. We conclude that the basic mechanisms of action understanding are intact in individuals with ASC although there may be impairment in the top-down, social modulation of eye movements. En ligne : http://dx.doi.org/10.1007/s10803-014-2215-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258