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Adults with autism spectrum condition have atypical perception of ambiguous figures when bottom-up and top-down interactions are incongruous / M. INTAITE in Autism, 23-5 (July 2019)
[article]
Titre : Adults with autism spectrum condition have atypical perception of ambiguous figures when bottom-up and top-down interactions are incongruous Type de document : Texte imprimé et/ou numérique Auteurs : M. INTAITE, Auteur ; Alexandra Livia GEORGESCU, Auteur ; V. NOREIKA, Auteur ; M. A. VON SALDERN, Auteur ; Kai VOGELEY, Auteur ; C. M. FALTER-WAGNER, Auteur Article en page(s) : p.1133-1142 Langues : Anglais (eng) Mots-clés : adaptation ambiguous figures autistic spectrum condition context Index. décimale : PER Périodiques Résumé : We examined the perception of an ambiguous squares stimulus evoking bistable perception in a sample of 31 individuals with autistic spectrum condition and 22 matched typical adults. The perception of the ambiguous figure was manipulated by adaptation to unambiguous figures and/or by placing the ambiguous figure into a context of unambiguous figures. This resulted in four conditions testing the independent and combined (congruent and incongruent) manipulations of adaptation (bottom-up) and spatial context (top-down) effects. The strength of perception, as measured by perception of the first reported orientation of the ambiguous stimulus, was affected comparably between groups. Nevertheless, the strength of perception, as measured by perceptual durations, was affected differently between groups: the perceptual effect was strongest for the autistic spectrum condition group when combined bottom-up and top-down conditions were congruent. In contrast, the strength of the perceptual effect in response to the same condition in the typical adults group was comparable to the adaptation, but stronger than both the context and the incongruent combined bottom-up and top-down conditions. Furthermore, the context condition was stronger than the incongruent combined bottom-up and top-down conditions for the typical adults group. Thus, our findings support the view of stimulus-specific top-down modulation in autistic spectrum condition. En ligne : http://dx.doi.org/10.1177/1362361318782221 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401
in Autism > 23-5 (July 2019) . - p.1133-1142[article] Adults with autism spectrum condition have atypical perception of ambiguous figures when bottom-up and top-down interactions are incongruous [Texte imprimé et/ou numérique] / M. INTAITE, Auteur ; Alexandra Livia GEORGESCU, Auteur ; V. NOREIKA, Auteur ; M. A. VON SALDERN, Auteur ; Kai VOGELEY, Auteur ; C. M. FALTER-WAGNER, Auteur . - p.1133-1142.
Langues : Anglais (eng)
in Autism > 23-5 (July 2019) . - p.1133-1142
Mots-clés : adaptation ambiguous figures autistic spectrum condition context Index. décimale : PER Périodiques Résumé : We examined the perception of an ambiguous squares stimulus evoking bistable perception in a sample of 31 individuals with autistic spectrum condition and 22 matched typical adults. The perception of the ambiguous figure was manipulated by adaptation to unambiguous figures and/or by placing the ambiguous figure into a context of unambiguous figures. This resulted in four conditions testing the independent and combined (congruent and incongruent) manipulations of adaptation (bottom-up) and spatial context (top-down) effects. The strength of perception, as measured by perception of the first reported orientation of the ambiguous stimulus, was affected comparably between groups. Nevertheless, the strength of perception, as measured by perceptual durations, was affected differently between groups: the perceptual effect was strongest for the autistic spectrum condition group when combined bottom-up and top-down conditions were congruent. In contrast, the strength of the perceptual effect in response to the same condition in the typical adults group was comparable to the adaptation, but stronger than both the context and the incongruent combined bottom-up and top-down conditions. Furthermore, the context condition was stronger than the incongruent combined bottom-up and top-down conditions for the typical adults group. Thus, our findings support the view of stimulus-specific top-down modulation in autistic spectrum condition. En ligne : http://dx.doi.org/10.1177/1362361318782221 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=401 Implicit and explicit understanding of ambiguous figures by adolescents with autism spectrum disorder / Melissa L. ALLEN in Autism, 15-4 (July 2011)
[article]
Titre : Implicit and explicit understanding of ambiguous figures by adolescents with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Melissa L. ALLEN, Auteur ; Alison CHAMBERS, Auteur Année de publication : 2011 Article en page(s) : p.457-472 Langues : Anglais (eng) Mots-clés : ambiguous figures conceptual copying enhanced perceptual functioning representation Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) can process both interpretations of an ambiguous figure (e.g. rabbit/duck) when told about the ambiguity, however they tend not to do so spontaneously. Here we show that although adolescents with ASD can explicitly experience such ‘reversals’, implicit measures suggest they are conceptually processing the images differently from learning disabled peers. Participants copied the same ambiguous figures under different contextual conditions, both before and after reversal experience. Results suggest that adolescents with ASD are not influenced by contextual information when copying ambiguous drawings, since they produce similar pictures before and after reversal, compared with controls. This research has implications for how individuals with ASD understand multiple representations and supports the Enhanced Perceptual Functioning theory. En ligne : http://dx.doi.org/10.1177/1362361310393364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=133
in Autism > 15-4 (July 2011) . - p.457-472[article] Implicit and explicit understanding of ambiguous figures by adolescents with autism spectrum disorder [Texte imprimé et/ou numérique] / Melissa L. ALLEN, Auteur ; Alison CHAMBERS, Auteur . - 2011 . - p.457-472.
Langues : Anglais (eng)
in Autism > 15-4 (July 2011) . - p.457-472
Mots-clés : ambiguous figures conceptual copying enhanced perceptual functioning representation Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) can process both interpretations of an ambiguous figure (e.g. rabbit/duck) when told about the ambiguity, however they tend not to do so spontaneously. Here we show that although adolescents with ASD can explicitly experience such ‘reversals’, implicit measures suggest they are conceptually processing the images differently from learning disabled peers. Participants copied the same ambiguous figures under different contextual conditions, both before and after reversal experience. Results suggest that adolescents with ASD are not influenced by contextual information when copying ambiguous drawings, since they produce similar pictures before and after reversal, compared with controls. This research has implications for how individuals with ASD understand multiple representations and supports the Enhanced Perceptual Functioning theory. En ligne : http://dx.doi.org/10.1177/1362361310393364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=133 The Relationship Between Subthreshold Autistic Traits, Ambiguous Figure Perception and Divergent Thinking / Catherine BEST in Journal of Autism and Developmental Disorders, 45-12 (December 2015)
[article]
Titre : The Relationship Between Subthreshold Autistic Traits, Ambiguous Figure Perception and Divergent Thinking Type de document : Texte imprimé et/ou numérique Auteurs : Catherine BEST, Auteur ; Shruti ARORA, Auteur ; Fiona PORTER, Auteur ; Martin DOHERTY, Auteur Année de publication : 2015 Article en page(s) : p.4064-4073 Langues : Anglais (eng) Mots-clés : Autism Ambiguous figures Creativity Autistic traits Divergent thinking Index. décimale : PER Périodiques Résumé : This research investigates the paradox of creativity in autism. That is, whether people with subclinical autistic traits have cognitive styles conducive to creativity or whether they are disadvantaged by the implied cognitive and behavioural rigidity of the autism phenotype. The relationship between divergent thinking (a cognitive component of creativity), perception of ambiguous figures, and self-reported autistic traits was evaluated in 312 individuals in a non-clinical sample. High levels of autistic traits were significantly associated with lower fluency scores on the divergent thinking tasks. However autistic traits were associated with high numbers of unusual responses on the divergent thinking tasks. Generation of novel ideas is a prerequisite for creative problem solving and may be an adaptive advantage associated with autistic traits. En ligne : http://dx.doi.org/10.1007/s10803-015-2518-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=274
in Journal of Autism and Developmental Disorders > 45-12 (December 2015) . - p.4064-4073[article] The Relationship Between Subthreshold Autistic Traits, Ambiguous Figure Perception and Divergent Thinking [Texte imprimé et/ou numérique] / Catherine BEST, Auteur ; Shruti ARORA, Auteur ; Fiona PORTER, Auteur ; Martin DOHERTY, Auteur . - 2015 . - p.4064-4073.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-12 (December 2015) . - p.4064-4073
Mots-clés : Autism Ambiguous figures Creativity Autistic traits Divergent thinking Index. décimale : PER Périodiques Résumé : This research investigates the paradox of creativity in autism. That is, whether people with subclinical autistic traits have cognitive styles conducive to creativity or whether they are disadvantaged by the implied cognitive and behavioural rigidity of the autism phenotype. The relationship between divergent thinking (a cognitive component of creativity), perception of ambiguous figures, and self-reported autistic traits was evaluated in 312 individuals in a non-clinical sample. High levels of autistic traits were significantly associated with lower fluency scores on the divergent thinking tasks. However autistic traits were associated with high numbers of unusual responses on the divergent thinking tasks. Generation of novel ideas is a prerequisite for creative problem solving and may be an adaptive advantage associated with autistic traits. En ligne : http://dx.doi.org/10.1007/s10803-015-2518-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=274