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Brief Report: Effect of Spatial Complexity on Visual Short-Term Memory and Self-Reported Autistic-Like Traits in Typically Developed Individuals / Junichi TAKAHASHI in Journal of Autism and Developmental Disorders, 43-7 (July 2013)
[article]
Titre : Brief Report: Effect of Spatial Complexity on Visual Short-Term Memory and Self-Reported Autistic-Like Traits in Typically Developed Individuals Type de document : Texte imprimé et/ou numérique Auteurs : Junichi TAKAHASHI, Auteur ; Jiro GYOBA, Auteur ; Nozomi YAMAWAKI, Auteur Année de publication : 2013 Article en page(s) : p.1725-1731 Langues : Anglais (eng) Mots-clés : Autism Autism spectrum quotient Visual short-term memory Complexity Spatial configuration Index. décimale : PER Périodiques Résumé : This report examines effects of the spatial complexity of configurations on visual short-term memory (VSTM) capacity for individuals from the general population differing on autism-spectrum quotient (AQ) scores. During each trial, nine-line segments with various orientations were arrayed in simple or complex configurations and presented in both memory and test displays. Typically, VSTM capacity decreases with increasing configuration complexity. We found that VSTM capacity for simple configurations was larger than for complex configurations in individuals reporting low AQ, whereas for individuals reporting high AQ, there were no significant differences between these configurations. These results suggest that the effects of spatial complexity on VSTM capacity could be observed in individuals reporting low AQ, but not in individuals reporting high AQ. En ligne : http://dx.doi.org/10.1007/s10803-012-1711-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202
in Journal of Autism and Developmental Disorders > 43-7 (July 2013) . - p.1725-1731[article] Brief Report: Effect of Spatial Complexity on Visual Short-Term Memory and Self-Reported Autistic-Like Traits in Typically Developed Individuals [Texte imprimé et/ou numérique] / Junichi TAKAHASHI, Auteur ; Jiro GYOBA, Auteur ; Nozomi YAMAWAKI, Auteur . - 2013 . - p.1725-1731.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 43-7 (July 2013) . - p.1725-1731
Mots-clés : Autism Autism spectrum quotient Visual short-term memory Complexity Spatial configuration Index. décimale : PER Périodiques Résumé : This report examines effects of the spatial complexity of configurations on visual short-term memory (VSTM) capacity for individuals from the general population differing on autism-spectrum quotient (AQ) scores. During each trial, nine-line segments with various orientations were arrayed in simple or complex configurations and presented in both memory and test displays. Typically, VSTM capacity decreases with increasing configuration complexity. We found that VSTM capacity for simple configurations was larger than for complex configurations in individuals reporting low AQ, whereas for individuals reporting high AQ, there were no significant differences between these configurations. These results suggest that the effects of spatial complexity on VSTM capacity could be observed in individuals reporting low AQ, but not in individuals reporting high AQ. En ligne : http://dx.doi.org/10.1007/s10803-012-1711-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202 Contextual effects on visual short-term memory in high-functioning autism spectrum disorders / Cristiane SOUZA in Research in Autism Spectrum Disorders, 32 (December 2016)
[article]
Titre : Contextual effects on visual short-term memory in high-functioning autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Cristiane SOUZA, Auteur ; Moreno I. COCO, Auteur ; Sandra PINHO, Auteur ; Carlos N. FILIPE, Auteur ; Joana C. CARMO, Auteur Article en page(s) : p.64-69 Langues : Anglais (eng) Mots-clés : Visual short-term memory Contextual expectations Autism spectrum disorder Index. décimale : PER Périodiques Résumé : AbstractBackground According to the context blindness hypothesis (Vermeulen, 2012) individuals with autism spectrum disorders (ASD) experience difficulties in processing contextual information. This study re-evaluates this hypothesis by examining the influence exerted by contextual information on visual short-term memory. Method In a visual short-term memory task, we test high-functioning individuals with ASD (N = 21) and a typically developed (TD) group (N = 25) matched on age, education and IQ. In this task, participants are exposed to scenes (e.g., the photo of a restaurant), then shown a target-object that is manipulated according to its contextual Consistency with the scene (e.g., a loaf of bread versus an iron) and finally asked whether they saw the target-object or not. Results The response accuracy was differentially mediated by the Consistency of the target-object for both the ASD and TD groups. In particular, individuals with ASD experienced more difficulty in identifying an inconsistent target when it was present in the scene. Moreover, when a consistent object was absent from the scene, individuals with ASD were more likely to wrongly state its presence than TD individuals. Conclusions Our results challenge a strict interpretation of the context blindness hypothesis by demonstrating that individuals with ASD are as sensitive as TD individuals to contextual information. Individuals with ASD, however, appear to use contextual information differently than TD individuals, as they seem to rely more on consolidated contextual expectations than the TD group. These findings could drive the development of novel expectancy-based teaching strategies. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.09.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=296
in Research in Autism Spectrum Disorders > 32 (December 2016) . - p.64-69[article] Contextual effects on visual short-term memory in high-functioning autism spectrum disorders [Texte imprimé et/ou numérique] / Cristiane SOUZA, Auteur ; Moreno I. COCO, Auteur ; Sandra PINHO, Auteur ; Carlos N. FILIPE, Auteur ; Joana C. CARMO, Auteur . - p.64-69.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 32 (December 2016) . - p.64-69
Mots-clés : Visual short-term memory Contextual expectations Autism spectrum disorder Index. décimale : PER Périodiques Résumé : AbstractBackground According to the context blindness hypothesis (Vermeulen, 2012) individuals with autism spectrum disorders (ASD) experience difficulties in processing contextual information. This study re-evaluates this hypothesis by examining the influence exerted by contextual information on visual short-term memory. Method In a visual short-term memory task, we test high-functioning individuals with ASD (N = 21) and a typically developed (TD) group (N = 25) matched on age, education and IQ. In this task, participants are exposed to scenes (e.g., the photo of a restaurant), then shown a target-object that is manipulated according to its contextual Consistency with the scene (e.g., a loaf of bread versus an iron) and finally asked whether they saw the target-object or not. Results The response accuracy was differentially mediated by the Consistency of the target-object for both the ASD and TD groups. In particular, individuals with ASD experienced more difficulty in identifying an inconsistent target when it was present in the scene. Moreover, when a consistent object was absent from the scene, individuals with ASD were more likely to wrongly state its presence than TD individuals. Conclusions Our results challenge a strict interpretation of the context blindness hypothesis by demonstrating that individuals with ASD are as sensitive as TD individuals to contextual information. Individuals with ASD, however, appear to use contextual information differently than TD individuals, as they seem to rely more on consolidated contextual expectations than the TD group. These findings could drive the development of novel expectancy-based teaching strategies. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.09.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=296 Allocentric Versus Egocentric Spatial Memory in Adults with Autism Spectrum Disorder / M. RING in Journal of Autism and Developmental Disorders, 48-6 (June 2018)
[article]
Titre : Allocentric Versus Egocentric Spatial Memory in Adults with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : M. RING, Auteur ; S. B. GAIGG, Auteur ; Mareike ALTGASSEN, Auteur ; P. BARR, Auteur ; Dermot M. BOWLER, Auteur Article en page(s) : p.2101-2111 Langues : Anglais (eng) Mots-clés : Allocentric Autism spectrum disorder Egocentric Mental rotation Spatial navigation Task support hypothesis Visual short-term memory Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) present difficulties in forming relations among items and context. This capacity for relational binding is also involved in spatial navigation and research on this topic in ASD is scarce and inconclusive. Using a computerised version of the Morris Water Maze task, ASD participants showed particular difficulties in performing viewpoint independent (allocentric) navigation, leaving viewpoint dependent navigation (egocentric) intact. Further analyses showed that navigation deficits were not related to poor visual short-term memory or mental rotation in the ASD group. The results further confirm the need of autistic individuals for support at retrieval and have important implications for the design of signposts and maps. En ligne : http://dx.doi.org/10.1007/s10803-018-3465-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=362
in Journal of Autism and Developmental Disorders > 48-6 (June 2018) . - p.2101-2111[article] Allocentric Versus Egocentric Spatial Memory in Adults with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / M. RING, Auteur ; S. B. GAIGG, Auteur ; Mareike ALTGASSEN, Auteur ; P. BARR, Auteur ; Dermot M. BOWLER, Auteur . - p.2101-2111.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 48-6 (June 2018) . - p.2101-2111
Mots-clés : Allocentric Autism spectrum disorder Egocentric Mental rotation Spatial navigation Task support hypothesis Visual short-term memory Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) present difficulties in forming relations among items and context. This capacity for relational binding is also involved in spatial navigation and research on this topic in ASD is scarce and inconclusive. Using a computerised version of the Morris Water Maze task, ASD participants showed particular difficulties in performing viewpoint independent (allocentric) navigation, leaving viewpoint dependent navigation (egocentric) intact. Further analyses showed that navigation deficits were not related to poor visual short-term memory or mental rotation in the ASD group. The results further confirm the need of autistic individuals for support at retrieval and have important implications for the design of signposts and maps. En ligne : http://dx.doi.org/10.1007/s10803-018-3465-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=362