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Reduced representational momentum for subtle dynamic facial expressions in individuals with autism spectrum disorders / Shota UONO in Research in Autism Spectrum Disorders, 8-9 (September 2014)
[article]
Titre : Reduced representational momentum for subtle dynamic facial expressions in individuals with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Shota UONO, Auteur ; Wataru SATO, Auteur ; Motomi TOICHI, Auteur Article en page(s) : p.1090-1099 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Dynamic facial expression Representational momentum Social impairment Index. décimale : PER Périodiques Résumé : Abstract The cognitive mechanisms underlying social communication via emotional facial expressions are crucial for understanding the social impairments experienced by people with autism spectrum disorders (ASD). A recent study (Yoshikawa amp; Sato, 2008) found that typically developing individuals perceived the last image from a dynamic facial expression to be more emotionally exaggerated than a static facial expression; this perceptual difference is termed representational momentum (RM) for dynamic facial expressions. RM for dynamic facial expressions might be useful for detecting emotion in another's face and for predicting behavior changes. We examined RM for dynamic facial expressions using facial expression stimuli at three levels of emotional intensity (subtle, medium, and extreme) in people with ASD. We predicted that individuals with ASD would show reduced RM for dynamic facial expressions. Eleven individuals with ASD (three with Asperger's disorder and eight with pervasive developmental disorder not otherwise specified) and 11 IQ-, age- and gender-matched typically developing controls participated in this study. Participants were asked to select an image that matched the final image from dynamic and static facial expressions. Our results revealed that subjectively perceived images were more exaggerated for the dynamic than for the static presentation under all levels of intensity and in both groups. The ASD group, however, perceived a reduced degree of exaggeration for dynamic facial expressions under the subtle intensity condition. As facial expressions are often displayed subtly in daily communications, reduced RM for subtle dynamic facial expressions may prevent individuals with ASD from appropriately interacting with other people as a consequence of their difficulty detecting others’ emotions. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.05.018 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=238
in Research in Autism Spectrum Disorders > 8-9 (September 2014) . - p.1090-1099[article] Reduced representational momentum for subtle dynamic facial expressions in individuals with autism spectrum disorders [Texte imprimé et/ou numérique] / Shota UONO, Auteur ; Wataru SATO, Auteur ; Motomi TOICHI, Auteur . - p.1090-1099.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 8-9 (September 2014) . - p.1090-1099
Mots-clés : Autism spectrum disorders Dynamic facial expression Representational momentum Social impairment Index. décimale : PER Périodiques Résumé : Abstract The cognitive mechanisms underlying social communication via emotional facial expressions are crucial for understanding the social impairments experienced by people with autism spectrum disorders (ASD). A recent study (Yoshikawa amp; Sato, 2008) found that typically developing individuals perceived the last image from a dynamic facial expression to be more emotionally exaggerated than a static facial expression; this perceptual difference is termed representational momentum (RM) for dynamic facial expressions. RM for dynamic facial expressions might be useful for detecting emotion in another's face and for predicting behavior changes. We examined RM for dynamic facial expressions using facial expression stimuli at three levels of emotional intensity (subtle, medium, and extreme) in people with ASD. We predicted that individuals with ASD would show reduced RM for dynamic facial expressions. Eleven individuals with ASD (three with Asperger's disorder and eight with pervasive developmental disorder not otherwise specified) and 11 IQ-, age- and gender-matched typically developing controls participated in this study. Participants were asked to select an image that matched the final image from dynamic and static facial expressions. Our results revealed that subjectively perceived images were more exaggerated for the dynamic than for the static presentation under all levels of intensity and in both groups. The ASD group, however, perceived a reduced degree of exaggeration for dynamic facial expressions under the subtle intensity condition. As facial expressions are often displayed subtly in daily communications, reduced RM for subtle dynamic facial expressions may prevent individuals with ASD from appropriately interacting with other people as a consequence of their difficulty detecting others’ emotions. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.05.018 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=238 Anticipation of Action Intentions in Autism Spectrum Disorder / Matthew HUDSON in Journal of Autism and Developmental Disorders, 42-8 (August 2012)
[article]
Titre : Anticipation of Action Intentions in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Matthew HUDSON, Auteur ; Hollie G. BURNETT, Auteur ; Tjeerd JELLEMA, Auteur Année de publication : 2012 Article en page(s) : p.1684-1693 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Gaze direction Action anticipation Representational momentum Motor intention Goal directed action Index. décimale : PER Périodiques Résumé : We investigated whether individuals with a mild form of autism spectrum disorder (ASD) are influenced by an actor’s gaze direction when anticipating how an observed action will continue in the immediate future. Participants observed a head rotate towards them, while the gaze direction was either leading, or lagging behind, rotation. They also observed identical rotations of a cylinder containing the geometrical equivalent of the gaze manipulation. The control group was influenced by the gaze manipulations for the animate but not the inanimate stimulus. The ASD group did not discriminate between the stimuli, showing a similar influence for both. This suggests that the ASD responses in the animate condition were biased by the low-level directional features of the eyes rather than by the conveyed intentions. En ligne : http://dx.doi.org/10.1007/s10803-011-1410-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178
in Journal of Autism and Developmental Disorders > 42-8 (August 2012) . - p.1684-1693[article] Anticipation of Action Intentions in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Matthew HUDSON, Auteur ; Hollie G. BURNETT, Auteur ; Tjeerd JELLEMA, Auteur . - 2012 . - p.1684-1693.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 42-8 (August 2012) . - p.1684-1693
Mots-clés : Autism spectrum disorder Gaze direction Action anticipation Representational momentum Motor intention Goal directed action Index. décimale : PER Périodiques Résumé : We investigated whether individuals with a mild form of autism spectrum disorder (ASD) are influenced by an actor’s gaze direction when anticipating how an observed action will continue in the immediate future. Participants observed a head rotate towards them, while the gaze direction was either leading, or lagging behind, rotation. They also observed identical rotations of a cylinder containing the geometrical equivalent of the gaze manipulation. The control group was influenced by the gaze manipulations for the animate but not the inanimate stimulus. The ASD group did not discriminate between the stimuli, showing a similar influence for both. This suggests that the ASD responses in the animate condition were biased by the low-level directional features of the eyes rather than by the conveyed intentions. En ligne : http://dx.doi.org/10.1007/s10803-011-1410-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178