Comparison of visual sensitivity to human and object motion in autism spectrum disorder / Martha D. KAISER in Autism Research, 3-4 (August 2010)  

Public ISBD [article]  inAutism Research > 3-4 (August 2010) . - p.191-195 Titre : Comparison of visual sensitivity to human and object motion in autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Martha D. KAISER, Auteur ; James W. TANAKA, Auteur ; Lara DELMOLINO, Auteur ; Maggie SHIFFRAR, Auteur Année de publication : 2010 Article en page(s) : p.191-195 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Successful social behavior requires the accurate detection of other people's movements. Consistent with this, typical observers demonstrate enhanced visual sensitivity to human movement relative to equally complex, nonhuman movement [e.g., Pinto & Shiffrar, 2009]. A psychophysical study investigated visual sensitivity to human motion relative to object motion in observers with autism spectrum disorder (ASD). Participants viewed point-light depictions of a moving person and, for comparison, a moving tractor and discriminated between coherent and scrambled versions of these stimuli in unmasked and masked displays. There were three groups of participants: young adults with ASD, typically developing young adults, and typically developing children. Across masking conditions, typical observers showed enhanced visual sensitivity to human movement while observers in the ASD group did not. Because the human body is an inherently social stimulus, this result is consistent with social brain theories [e.g., Pelphrey & Carter, 2008; Schultz, 2005] and suggests that the visual systems of individuals with ASD may not be tuned for the detection of socially relevant information such as the presence of another person. Reduced visual sensitivity to human movements could compromise important social behaviors including, for example, gesture comprehension. En ligne : http://dx.doi.org/10.1002/aur.137 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=109 [article] Comparison of visual sensitivity to human and object motion in autism spectrum disorder [Texte imprimé et/ou numérique] / Martha D. KAISER, Auteur ; James W. TANAKA, Auteur ; Lara DELMOLINO, Auteur ; Maggie SHIFFRAR, Auteur . - 2010 . - p.191-195. Langues : Anglais (eng) in Autism Research > 3-4 (August 2010) . - p.191-195 Index. décimale : PER Périodiques Résumé : Successful social behavior requires the accurate detection of other people's movements. Consistent with this, typical observers demonstrate enhanced visual sensitivity to human movement relative to equally complex, nonhuman movement [e.g., Pinto & Shiffrar, 2009]. A psychophysical study investigated visual sensitivity to human motion relative to object motion in observers with autism spectrum disorder (ASD). Participants viewed point-light depictions of a moving person and, for comparison, a moving tractor and discriminated between coherent and scrambled versions of these stimuli in unmasked and masked displays. There were three groups of participants: young adults with ASD, typically developing young adults, and typically developing children. Across masking conditions, typical observers showed enhanced visual sensitivity to human movement while observers in the ASD group did not. Because the human body is an inherently social stimulus, this result is consistent with social brain theories [e.g., Pelphrey & Carter, 2008; Schultz, 2005] and suggests that the visual systems of individuals with ASD may not be tuned for the detection of socially relevant information such as the presence of another person. Reduced visual sensitivity to human movements could compromise important social behaviors including, for example, gesture comprehension. En ligne : http://dx.doi.org/10.1002/aur.137 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=109

Movement perception and movement production in Asperger's Syndrome / Kelly J. PRICE in Research in Autism Spectrum Disorders, 6-1 (January-March 2012)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 6-1 (January-March 2012) . - p.391-398 Titre : Movement perception and movement production in Asperger's Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : Kelly J. PRICE, Auteur ; Maggie SHIFFRAR, Auteur ; Kimberly A. KERNS, Auteur Année de publication : 2012 Article en page(s) : p.391-398 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD)  Asperger's Syndrome (AS)  Motor skills  Motion perception  Biological motion Index. décimale : PER Périodiques Résumé : To determine whether motor difficulties documented in Asperger's Syndrome (AS) are related to compromised visual abilities, this study examined perception and movement in response to dynamic visual environments. Fourteen males with AS and 16 controls aged 7–23 completed measures of motor skills, postural response to optic flow, and visual sensitivity to static form and coherent motion in random dot kinematograms and point-light walkers. No group differences were found in sensitivity to static form or coherent motion. However, significant group differences were found in visual sensitivity to human movement and postural responsivity to optic flow, which both correlated with motor skills. This may suggest difficulties in perception and production of movement and dysfunctional perceptual-motor linkages in AS. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.06.013 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=146 [article] Movement perception and movement production in Asperger's Syndrome [Texte imprimé et/ou numérique] / Kelly J. PRICE, Auteur ; Maggie SHIFFRAR, Auteur ; Kimberly A. KERNS, Auteur . - 2012 . - p.391-398. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 6-1 (January-March 2012) . - p.391-398 Mots-clés : Autism spectrum disorder (ASD)  Asperger's Syndrome (AS)  Motor skills  Motion perception  Biological motion Index. décimale : PER Périodiques Résumé : To determine whether motor difficulties documented in Asperger's Syndrome (AS) are related to compromised visual abilities, this study examined perception and movement in response to dynamic visual environments. Fourteen males with AS and 16 controls aged 7–23 completed measures of motor skills, postural response to optic flow, and visual sensitivity to static form and coherent motion in random dot kinematograms and point-light walkers. No group differences were found in sensitivity to static form or coherent motion. However, significant group differences were found in visual sensitivity to human movement and postural responsivity to optic flow, which both correlated with motor skills. This may suggest difficulties in perception and production of movement and dysfunctional perceptual-motor linkages in AS. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.06.013 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=146

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