Missing the big picture: impaired development of global shape processing in autism / K. Suzanne SCHERF in Autism Research, 1-2 (April 2008)  

Public ISBD [article]  inAutism Research > 1-2 (April 2008) . - p.114-129 Titre : Missing the big picture: impaired development of global shape processing in autism Type de document : texte imprimé Auteurs : K. Suzanne SCHERF, Auteur ; Nancy J. MINSHEW, Auteur ; Beatriz LUNA, Auteur ; Marlene BEHRMANN, Auteur ; Ruth KIMCHI, Auteur Année de publication : 2008 Article en page(s) : p.114-129 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Individuals with autism exhibit hypersensitivity to local elements of the input, which may interfere with the ability to group visual elements perceptually. We investigated the development of perceptual grouping abilities in high-functioning individuals with autism (HFA) across a wide age range (8-30 years) using a classic compound letter global/local (GL) task and a more fine-grained microgenetic prime paradigm (MPP), including both few- and many-element hierarchical displays. In the GL task, contrary to the typically developing (TD) controls, HFA participants did not develop an increasing sensitivity to the global information with age. In the MPP, like the TD controls, individuals with autism at all three age groups evinced a bias to individuate the few-element displays. However, contrary to the TD controls, the HFA group failed to show age-related improvements in the ability to encode the global shape of the many-element displays. In fact, across the age range, the HFA group was consistently faster than the TD controls at perceiving the local elements in these displays. These results indicate that in autism the full process of garnering shape information from perceptual grouping, which is essential for the ability to do fast and efficient object recognition and identification, never matures, and this is especially evident in adolescence when this ability begins to improve in TD individuals. The atypical development of these perceptual organizational abilities may disrupt processing of visually presented objects, which may, in turn, fundamentally impede the development of major aspects of the social and emotional behaviors in individuals with autism. En ligne : http://dx.doi.org/10.1002/aur.17 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=930 [article] Missing the big picture: impaired development of global shape processing in autism [texte imprimé] / K. Suzanne SCHERF, Auteur ; Nancy J. MINSHEW, Auteur ; Beatriz LUNA, Auteur ; Marlene BEHRMANN, Auteur ; Ruth KIMCHI, Auteur . - 2008 . - p.114-129. Langues : Anglais (eng) in Autism Research > 1-2 (April 2008) . - p.114-129 Index. décimale : PER Périodiques Résumé : Individuals with autism exhibit hypersensitivity to local elements of the input, which may interfere with the ability to group visual elements perceptually. We investigated the development of perceptual grouping abilities in high-functioning individuals with autism (HFA) across a wide age range (8-30 years) using a classic compound letter global/local (GL) task and a more fine-grained microgenetic prime paradigm (MPP), including both few- and many-element hierarchical displays. In the GL task, contrary to the typically developing (TD) controls, HFA participants did not develop an increasing sensitivity to the global information with age. In the MPP, like the TD controls, individuals with autism at all three age groups evinced a bias to individuate the few-element displays. However, contrary to the TD controls, the HFA group failed to show age-related improvements in the ability to encode the global shape of the many-element displays. In fact, across the age range, the HFA group was consistently faster than the TD controls at perceiving the local elements in these displays. These results indicate that in autism the full process of garnering shape information from perceptual grouping, which is essential for the ability to do fast and efficient object recognition and identification, never matures, and this is especially evident in adolescence when this ability begins to improve in TD individuals. The atypical development of these perceptual organizational abilities may disrupt processing of visually presented objects, which may, in turn, fundamentally impede the development of major aspects of the social and emotional behaviors in individuals with autism. En ligne : http://dx.doi.org/10.1002/aur.17 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=930

Visual Detection and Decoding Skills of Aerial Photography by Adults with Autism Spectrum Disorder (ASD) / Hadas MARCIANO in Journal of Autism and Developmental Disorders, 52-3 (March 2022)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 52-3 (March 2022) . - p.1346-1360 Titre : Visual Detection and Decoding Skills of Aerial Photography by Adults with Autism Spectrum Disorder (ASD) Type de document : texte imprimé Auteurs : Hadas MARCIANO, Auteur ; Eynat GAL, Auteur ; Ruth KIMCHI, Auteur ; Darren HEDLEY, Auteur ; Yael GOLDFARB, Auteur ; Yoram S. BONNEH, Auteur Article en page(s) : p.1346-1360 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/diagnosis  Cognition  Humans  Photography  Social Skills  Visual Perception  Young Adult  Autism spectrum disorders  Cognition (attention, learning, memory)  Visual decoding  Visual search  Vocational/labor force participation Index. décimale : PER Périodiques Résumé : Despite challenges in social communication skills people with ASD often display strengths in visual processing. Aerial photography analysis is an occupation reliant on strong visual processing skills that matches this unique profile. We investigated basic-vision and "real-life" visual tasks in 20 cognitively-able young adults with ASD and 20 typically-developed (TD) "gamers". Basic-vision tests included Visual-Search, Embedded-Figures, and Vigilance; "real-life" tests included aerial-photograph detection and identification. Groups performed equally well, and did not differ significantly on any tasks. The study demonstrates strong visual skills in people with ASD in basic and "real-life" settings, and supports the idea that they may be well suited for employment in occupations that demand high visual perception skills such as aerial photography analysis. En ligne : http://dx.doi.org/10.1007/s10803-021-05039-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 [article] Visual Detection and Decoding Skills of Aerial Photography by Adults with Autism Spectrum Disorder (ASD) [texte imprimé] / Hadas MARCIANO, Auteur ; Eynat GAL, Auteur ; Ruth KIMCHI, Auteur ; Darren HEDLEY, Auteur ; Yael GOLDFARB, Auteur ; Yoram S. BONNEH, Auteur . - p.1346-1360. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 52-3 (March 2022) . - p.1346-1360 Mots-clés : Autism Spectrum Disorder/diagnosis  Cognition  Humans  Photography  Social Skills  Visual Perception  Young Adult  Autism spectrum disorders  Cognition (attention, learning, memory)  Visual decoding  Visual search  Vocational/labor force participation Index. décimale : PER Périodiques Résumé : Despite challenges in social communication skills people with ASD often display strengths in visual processing. Aerial photography analysis is an occupation reliant on strong visual processing skills that matches this unique profile. We investigated basic-vision and "real-life" visual tasks in 20 cognitively-able young adults with ASD and 20 typically-developed (TD) "gamers". Basic-vision tests included Visual-Search, Embedded-Figures, and Vigilance; "real-life" tests included aerial-photograph detection and identification. Groups performed equally well, and did not differ significantly on any tasks. The study demonstrates strong visual skills in people with ASD in basic and "real-life" settings, and supports the idea that they may be well suited for employment in occupations that demand high visual perception skills such as aerial photography analysis. En ligne : http://dx.doi.org/10.1007/s10803-021-05039-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455

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