Investigating how Explicit Contextual Cues Affect Predictive Sensorimotor Control in Autistic Adults / Tom ARTHUR in Journal of Autism and Developmental Disorders, 53-11 (November 2023)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 53-11 (November 2023) . - p.4368-4381 Titre : Investigating how Explicit Contextual Cues Affect Predictive Sensorimotor Control in Autistic Adults Type de document : Texte imprimé et/ou numérique Auteurs : Tom ARTHUR, Auteur ; Mark BROSNAN, Auteur ; David HARRIS, Auteur ; Gavin BUCKINGHAM, Auteur ; Mark WILSON, Auteur ; Genevieve WILLIAMS, Auteur ; Sam VINE, Auteur Article en page(s) : p.4368-4381 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Research suggests that sensorimotor difficulties in autism could be reduced by providing individuals with explicit contextual information. To test this, we examined autistic visuomotor control during a virtual racquetball task, in which participants hit normal and unexpectedly-bouncy balls using a handheld controller. The probability of facing each type of ball was varied unpredictably over time. However, during cued trials, participants received explicit information about the likelihood of facing each uncertain outcome. When compared to neurotypical controls, autistic individuals displayed poorer task performance, atypical gaze profiles, and more restricted swing kinematics. These visuomotor patterns were not significantly affected by contextual cues, indicating that autistic people exhibit underlying differences in how prior information and environmental uncertainty are dynamically modulated during movement tasks. En ligne : https://doi.org/10.1007/s10803-022-05718-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512 [article] Investigating how Explicit Contextual Cues Affect Predictive Sensorimotor Control in Autistic Adults [Texte imprimé et/ou numérique] / Tom ARTHUR, Auteur ; Mark BROSNAN, Auteur ; David HARRIS, Auteur ; Gavin BUCKINGHAM, Auteur ; Mark WILSON, Auteur ; Genevieve WILLIAMS, Auteur ; Sam VINE, Auteur . - p.4368-4381. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 53-11 (November 2023) . - p.4368-4381 Index. décimale : PER Périodiques Résumé : Research suggests that sensorimotor difficulties in autism could be reduced by providing individuals with explicit contextual information. To test this, we examined autistic visuomotor control during a virtual racquetball task, in which participants hit normal and unexpectedly-bouncy balls using a handheld controller. The probability of facing each type of ball was varied unpredictably over time. However, during cued trials, participants received explicit information about the likelihood of facing each uncertain outcome. When compared to neurotypical controls, autistic individuals displayed poorer task performance, atypical gaze profiles, and more restricted swing kinematics. These visuomotor patterns were not significantly affected by contextual cues, indicating that autistic people exhibit underlying differences in how prior information and environmental uncertainty are dynamically modulated during movement tasks. En ligne : https://doi.org/10.1007/s10803-022-05718-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=512

The Influence of Prior Knowledge on Perception and Action: Relationships to Autistic Traits / Gavin BUCKINGHAM in Journal of Autism and Developmental Disorders, 46-5 (May 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1716-1724 Titre : The Influence of Prior Knowledge on Perception and Action: Relationships to Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : Gavin BUCKINGHAM, Auteur ; Elizabeth Evgenia MICHELAKAKIS, Auteur ; Gnanathusharan RAJENDRAN, Auteur Article en page(s) : p.1716-1724 Langues : Anglais (eng) Mots-clés : Autistic quotient  Grip force  Object lifting  Size-weight illusion  Sensorimotor prediction Index. décimale : PER Périodiques Résumé : Autism is characterised by a range of perceptual and sensorimotor deficits, which might be related to abnormalities in how autistic individuals use prior knowledge. We investigated this proposition in a large non-clinical population in the context of the size-weight illusion, where individual’s expectations about object weight influence their perceptions of heaviness and fingertip forces. Although there was no relationship between autistic traits and the magnitude of the illusion, we observed an inverse relationship between AQ scores and how expectations influenced initial fingertip force application. These findings provide a novel dissociation between how perceptual and sensorimotor processes are related to autistic traits, and suggest that, autistic traits might explain some of the variance surrounding how individuals grip and lift objects. En ligne : http://dx.doi.org/10.1007/s10803-016-2701-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288 [article] The Influence of Prior Knowledge on Perception and Action: Relationships to Autistic Traits [Texte imprimé et/ou numérique] / Gavin BUCKINGHAM, Auteur ; Elizabeth Evgenia MICHELAKAKIS, Auteur ; Gnanathusharan RAJENDRAN, Auteur . - p.1716-1724. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-5 (May 2016) . - p.1716-1724 Mots-clés : Autistic quotient  Grip force  Object lifting  Size-weight illusion  Sensorimotor prediction Index. décimale : PER Périodiques Résumé : Autism is characterised by a range of perceptual and sensorimotor deficits, which might be related to abnormalities in how autistic individuals use prior knowledge. We investigated this proposition in a large non-clinical population in the context of the size-weight illusion, where individual’s expectations about object weight influence their perceptions of heaviness and fingertip forces. Although there was no relationship between autistic traits and the magnitude of the illusion, we observed an inverse relationship between AQ scores and how expectations influenced initial fingertip force application. These findings provide a novel dissociation between how perceptual and sensorimotor processes are related to autistic traits, and suggest that, autistic traits might explain some of the variance surrounding how individuals grip and lift objects. En ligne : http://dx.doi.org/10.1007/s10803-016-2701-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=288

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