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Seeing a Page in a Flipbook: Shorter Visual Temporal Integration Windows in 2-Year-Old Toddlers with Autism Spectrum Disorder / Julie FRESCHL in Autism Research, 14-5 (May 2021)
[article]
Titre : Seeing a Page in a Flipbook: Shorter Visual Temporal Integration Windows in 2-Year-Old Toddlers with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Julie FRESCHL, Auteur ; David MELCHER, Auteur ; Alice S. CARTER, Auteur ; Zsuzsa KALDY, Auteur ; Erik BLASER, Auteur Article en page(s) : p.946-958 Langues : Anglais (eng) Mots-clés : autism integration segmentation temporal integration window toddlers visual temporal processing Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) experience differences in visual temporal processing, the part of vision responsible for parsing continuous input into discrete objects and events. Here we investigated temporal processing in 2-year-old toddlers diagnosed with ASD and age-matched typically developing (TD) toddlers. We used a visual search task where the visibility of the target was determined by the pace of a display sequence. On integration trials, each display viewed alone had no visible target, but if integrated over time, the target became visible. On segmentation trials, the target became visible only when displays were perceptually segmented. We measured the percent of trials when participants fixated the target as a function of the stimulus onset asynchrony (SOA) between displays. We computed the crossover point of the integration and segmentation performance functions for each group, an estimate of the temporal integration window (TIW), the period in which visual input is combined. We found that both groups of toddlers had significantly longer TIWs (125?ms) than adults (65?ms) from previous studies using the same paradigm, and that toddlers with ASD had significantly shorter TIWs (108?ms) than chronologically age-matched TD controls (142?ms). LAY SUMMARY: We investigated how young children, with and without autism, organize dynamic visual information across time, using a visual search paradigm. We found that toddlers with autism had higher temporal resolution than typically developing (TD) toddlers of the same age - that is, they are more likely to be able to detect rapid change across time, relative to TD toddlers. These differences in visual temporal processing can impact how one sees, interprets, and interacts with the world. Autism Res 2021, 14: 946-958. © 2020 International Society for Autism Research and Wiley Periodicals LLC. En ligne : http://dx.doi.org/10.1002/aur.2430 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=444
in Autism Research > 14-5 (May 2021) . - p.946-958[article] Seeing a Page in a Flipbook: Shorter Visual Temporal Integration Windows in 2-Year-Old Toddlers with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Julie FRESCHL, Auteur ; David MELCHER, Auteur ; Alice S. CARTER, Auteur ; Zsuzsa KALDY, Auteur ; Erik BLASER, Auteur . - p.946-958.
Langues : Anglais (eng)
in Autism Research > 14-5 (May 2021) . - p.946-958
Mots-clés : autism integration segmentation temporal integration window toddlers visual temporal processing Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder (ASD) experience differences in visual temporal processing, the part of vision responsible for parsing continuous input into discrete objects and events. Here we investigated temporal processing in 2-year-old toddlers diagnosed with ASD and age-matched typically developing (TD) toddlers. We used a visual search task where the visibility of the target was determined by the pace of a display sequence. On integration trials, each display viewed alone had no visible target, but if integrated over time, the target became visible. On segmentation trials, the target became visible only when displays were perceptually segmented. We measured the percent of trials when participants fixated the target as a function of the stimulus onset asynchrony (SOA) between displays. We computed the crossover point of the integration and segmentation performance functions for each group, an estimate of the temporal integration window (TIW), the period in which visual input is combined. We found that both groups of toddlers had significantly longer TIWs (125?ms) than adults (65?ms) from previous studies using the same paradigm, and that toddlers with ASD had significantly shorter TIWs (108?ms) than chronologically age-matched TD controls (142?ms). LAY SUMMARY: We investigated how young children, with and without autism, organize dynamic visual information across time, using a visual search paradigm. We found that toddlers with autism had higher temporal resolution than typically developing (TD) toddlers of the same age - that is, they are more likely to be able to detect rapid change across time, relative to TD toddlers. These differences in visual temporal processing can impact how one sees, interprets, and interacts with the world. Autism Res 2021, 14: 946-958. © 2020 International Society for Autism Research and Wiley Periodicals LLC. En ligne : http://dx.doi.org/10.1002/aur.2430 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=444 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