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Détail de l'auteur
Auteur Anna FRANKLIN |
Documents disponibles écrits par cet auteur (2)
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Color Perception in Children with Autism / Anna FRANKLIN in Journal of Autism and Developmental Disorders, 38-10 (November 2008)
[article]
Titre : Color Perception in Children with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Anna FRANKLIN, Auteur ; Paul SOWDEN, Auteur ; Rachel BURLEY, Auteur ; Leslie NOTMAN, Auteur ; Elizabeth ALDER, Auteur Année de publication : 2008 Article en page(s) : 1837-1847 Langues : Anglais (eng) Mots-clés : Autism Color Perception Categorization Index. décimale : PER Périodiques Résumé : This study examined whether color perception is atypical in children with autism. In experiment 1, accuracy of color memory and search was compared for children with autism and typically developing children matched on age and non-verbal cognitive ability. Children with autism were significantly less accurate at color memory and search than controls. In experiment 2, chromatic discrimination and categorical perception of color were assessed using a target detection task. Children with autism were less accurate than controls at detecting chromatic targets when presented on chromatic backgrounds, although were equally as fast when target detection was accurate. The strength of categorical perception of color did not differ for the two groups. Implications for theories on perceptual development in autism are discussed. En ligne : http://dx.doi.org/10.1007/s10803-008-0574-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=641
in Journal of Autism and Developmental Disorders > 38-10 (November 2008) . - 1837-1847[article] Color Perception in Children with Autism [Texte imprimé et/ou numérique] / Anna FRANKLIN, Auteur ; Paul SOWDEN, Auteur ; Rachel BURLEY, Auteur ; Leslie NOTMAN, Auteur ; Elizabeth ALDER, Auteur . - 2008 . - 1837-1847.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 38-10 (November 2008) . - 1837-1847
Mots-clés : Autism Color Perception Categorization Index. décimale : PER Périodiques Résumé : This study examined whether color perception is atypical in children with autism. In experiment 1, accuracy of color memory and search was compared for children with autism and typically developing children matched on age and non-verbal cognitive ability. Children with autism were significantly less accurate at color memory and search than controls. In experiment 2, chromatic discrimination and categorical perception of color were assessed using a target detection task. Children with autism were less accurate than controls at detecting chromatic targets when presented on chromatic backgrounds, although were equally as fast when target detection was accurate. The strength of categorical perception of color did not differ for the two groups. Implications for theories on perceptual development in autism are discussed. En ligne : http://dx.doi.org/10.1007/s10803-008-0574-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=641
[article]
Titre : Ensemble perception of color in autistic adults Type de document : Texte imprimé et/ou numérique Auteurs : John MAULE, Auteur ; Kirstie STANWORTH, Auteur ; Elizabeth PELLICANO, Auteur ; Anna FRANKLIN, Auteur Article en page(s) : p.839-851 Langues : Anglais (eng) Mots-clés : autism color ensemble perception visual perception priors global processing Index. décimale : PER Périodiques Résumé : Dominant accounts of visual processing in autism posit that autistic individuals have an enhanced access to details of scenes [e.g., weak central coherence] which is reflected in a general bias toward local processing. Furthermore, the attenuated priors account of autism predicts that the updating and use of summary representations is reduced in autism. Ensemble perception describes the extraction of global summary statistics of a visual feature from a heterogeneous set (e.g., of faces, sizes, colors), often in the absence of local item representation. The present study investigated ensemble perception in autistic adults using a rapidly presented (500 msec) ensemble of four, eight, or sixteen elements representing four different colors. We predicted that autistic individuals would be less accurate when averaging the ensembles, but more accurate in recognizing individual ensemble colors. The results were consistent with the predictions. Averaging was impaired in autism, but only when ensembles contained four elements. Ensembles of eight or sixteen elements were averaged equally accurately across groups. The autistic group also showed a corresponding advantage in rejecting colors that were not originally seen in the ensemble. The results demonstrate the local processing bias in autism, but also suggest that the global perceptual averaging mechanism may be compromised under some conditions. The theoretical implications of the findings and future avenues for research on summary statistics in autism are discussed. En ligne : http://dx.doi.org/10.1002/aur.1725 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=307
in Autism Research > 10-5 (May 2017) . - p.839-851[article] Ensemble perception of color in autistic adults [Texte imprimé et/ou numérique] / John MAULE, Auteur ; Kirstie STANWORTH, Auteur ; Elizabeth PELLICANO, Auteur ; Anna FRANKLIN, Auteur . - p.839-851.
Langues : Anglais (eng)
in Autism Research > 10-5 (May 2017) . - p.839-851
Mots-clés : autism color ensemble perception visual perception priors global processing Index. décimale : PER Périodiques Résumé : Dominant accounts of visual processing in autism posit that autistic individuals have an enhanced access to details of scenes [e.g., weak central coherence] which is reflected in a general bias toward local processing. Furthermore, the attenuated priors account of autism predicts that the updating and use of summary representations is reduced in autism. Ensemble perception describes the extraction of global summary statistics of a visual feature from a heterogeneous set (e.g., of faces, sizes, colors), often in the absence of local item representation. The present study investigated ensemble perception in autistic adults using a rapidly presented (500 msec) ensemble of four, eight, or sixteen elements representing four different colors. We predicted that autistic individuals would be less accurate when averaging the ensembles, but more accurate in recognizing individual ensemble colors. The results were consistent with the predictions. Averaging was impaired in autism, but only when ensembles contained four elements. Ensembles of eight or sixteen elements were averaged equally accurately across groups. The autistic group also showed a corresponding advantage in rejecting colors that were not originally seen in the ensemble. The results demonstrate the local processing bias in autism, but also suggest that the global perceptual averaging mechanism may be compromised under some conditions. The theoretical implications of the findings and future avenues for research on summary statistics in autism are discussed. En ligne : http://dx.doi.org/10.1002/aur.1725 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=307