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Grouping-Induced Numerosity Biases Vary with Autistic-Like Personality Traits / A. POMÈ in Journal of Autism and Developmental Disorders, 52-3 (March 2022)
[article]
Titre : Grouping-Induced Numerosity Biases Vary with Autistic-Like Personality Traits Type de document : Texte imprimé et/ou numérique Auteurs : A. POMÈ, Auteur ; C. CAPONI, Auteur ; D. C. BURR, Auteur Article en page(s) : p.1326-1333 Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder/diagnosis Autistic Disorder Bayes Theorem Bias Humans Personality Aq Number perception Perceptual grouping Segmentation Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder are thought to have a more local than global perceptual style. We used a novel paradigm to investigate how grouping-induced response biases in numerosity judgments depend on autistic-like personality traits in neurotypical adults. Participants judged the numerosity of clouds of dot-pairs connected by thin lines, known to cause underestimation of numerosity. The underestimation bias correlated strongly with autism-spectrum quotient (r?=?0.72, Bayes factor?>?100), being weaker for participants with high autistic traits. As connecting dots probably activates global grouping mechanisms, causing dot-pairs to be processed as an integrated whole rather than as individual dots, the results suggest that these grouping mechanisms may be weaker in individuals self-reporting high levels of autistic-like traits. En ligne : http://dx.doi.org/10.1007/s10803-021-05029-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455
in Journal of Autism and Developmental Disorders > 52-3 (March 2022) . - p.1326-1333[article] Grouping-Induced Numerosity Biases Vary with Autistic-Like Personality Traits [Texte imprimé et/ou numérique] / A. POMÈ, Auteur ; C. CAPONI, Auteur ; D. C. BURR, Auteur . - p.1326-1333.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 52-3 (March 2022) . - p.1326-1333
Mots-clés : Adult Autism Spectrum Disorder/diagnosis Autistic Disorder Bayes Theorem Bias Humans Personality Aq Number perception Perceptual grouping Segmentation Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder are thought to have a more local than global perceptual style. We used a novel paradigm to investigate how grouping-induced response biases in numerosity judgments depend on autistic-like personality traits in neurotypical adults. Participants judged the numerosity of clouds of dot-pairs connected by thin lines, known to cause underestimation of numerosity. The underestimation bias correlated strongly with autism-spectrum quotient (r?=?0.72, Bayes factor?>?100), being weaker for participants with high autistic traits. As connecting dots probably activates global grouping mechanisms, causing dot-pairs to be processed as an integrated whole rather than as individual dots, the results suggest that these grouping mechanisms may be weaker in individuals self-reporting high levels of autistic-like traits. En ligne : http://dx.doi.org/10.1007/s10803-021-05029-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 Slowed Search in the Context of Unimpaired Grouping in Autism: Evidence from Multiple Conjunction Search / Brandon KEEHN in Autism Research, 9-3 (March 2016)
[article]
Titre : Slowed Search in the Context of Unimpaired Grouping in Autism: Evidence from Multiple Conjunction Search Type de document : Texte imprimé et/ou numérique Auteurs : Brandon KEEHN, Auteur ; Robert M. JOSEPH, Auteur Article en page(s) : p.333-339 Langues : Anglais (eng) Mots-clés : autism attention visual search perceptual grouping priming Index. décimale : PER Périodiques Résumé : In multiple conjunction search, the target is not known in advance but is defined only with respect to the distractors in a given search array, thus reducing the contributions of bottom-up and top-down attentional and perceptual processes during search. This study investigated whether the superior visual search skills typically demonstrated by individuals with autism spectrum disorder (ASD) would be evident in multiple conjunction search. Thirty-two children with ASD and 32 age- and nonverbal IQ-matched typically developing (TD) children were administered a multiple conjunction search task. Contrary to findings from the large majority of studies on visual search in ASD, response times of individuals with ASD were significantly slower than those of their TD peers. Evidence of slowed performance in ASD suggests that the mechanisms responsible for superior ASD performance in other visual search paradigms are not available in multiple conjunction search. Although the ASD group failed to exhibit superior performance, they showed efficient search and intertrial priming levels similar to the TD group. Efficient search indicates that ASD participants were able to group distractors into distinct subsets. In summary, while demonstrating grouping and priming effects comparable to those exhibited by their TD peers, children with ASD were slowed in their performance on a multiple conjunction search task, suggesting that their usual superior performance in visual search tasks is specifically dependent on top-down and/or bottom-up attentional and perceptual processes. Autism Res 2016, 9: 333–339. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1534 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285
in Autism Research > 9-3 (March 2016) . - p.333-339[article] Slowed Search in the Context of Unimpaired Grouping in Autism: Evidence from Multiple Conjunction Search [Texte imprimé et/ou numérique] / Brandon KEEHN, Auteur ; Robert M. JOSEPH, Auteur . - p.333-339.
Langues : Anglais (eng)
in Autism Research > 9-3 (March 2016) . - p.333-339
Mots-clés : autism attention visual search perceptual grouping priming Index. décimale : PER Périodiques Résumé : In multiple conjunction search, the target is not known in advance but is defined only with respect to the distractors in a given search array, thus reducing the contributions of bottom-up and top-down attentional and perceptual processes during search. This study investigated whether the superior visual search skills typically demonstrated by individuals with autism spectrum disorder (ASD) would be evident in multiple conjunction search. Thirty-two children with ASD and 32 age- and nonverbal IQ-matched typically developing (TD) children were administered a multiple conjunction search task. Contrary to findings from the large majority of studies on visual search in ASD, response times of individuals with ASD were significantly slower than those of their TD peers. Evidence of slowed performance in ASD suggests that the mechanisms responsible for superior ASD performance in other visual search paradigms are not available in multiple conjunction search. Although the ASD group failed to exhibit superior performance, they showed efficient search and intertrial priming levels similar to the TD group. Efficient search indicates that ASD participants were able to group distractors into distinct subsets. In summary, while demonstrating grouping and priming effects comparable to those exhibited by their TD peers, children with ASD were slowed in their performance on a multiple conjunction search task, suggesting that their usual superior performance in visual search tasks is specifically dependent on top-down and/or bottom-up attentional and perceptual processes. Autism Res 2016, 9: 333–339. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.1534 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=285