8 recherche sur le mot-clé 'grouping'

Brief Report: Reduced Grouping Interference in Children with ASD: Evidence from a Multiple Object Tracking Task / Kris EVERS in Journal of Autism and Developmental Disorders, 44-7 (July 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-7 (July 2014) . - p.1779-1787 Titre : Brief Report: Reduced Grouping Interference in Children with ASD: Evidence from a Multiple Object Tracking Task Type de document : texte imprimé Auteurs : Kris EVERS, Auteur ; Lee DE-WIT, Auteur ; Ruth VAN DER HALLEN, Auteur ; Birgitt HAESEN, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.1779-1787 Langues : Anglais (eng) Mots-clés : Attention  Autism spectrum disorder (ASD)  Global interference  Grouping  Multiple object tracking  Weak central coherence Index. décimale : PER Périodiques Résumé : This study was inspired by the more locally oriented processing style in autism spectrum disorders (ASD). A modified multiple object tracking (MOT) task was administered to a group of children with and without ASD. Participants not only had to distinguish moving targets from distracters, but they also had to track targets when they were visually grouped to distracters, a manipulation which has a detrimental effect on tracking performance in adults. MOT performance in the ASD group was also affected by grouping, but this effect was significantly reduced. This result highlights how the reduced bias towards more global processing in ASD could influence further stages of cognition by altering the way in which attention selects information for further processing. En ligne : http://dx.doi.org/10.1007/s10803-013-2031-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236 [article] Brief Report: Reduced Grouping Interference in Children with ASD: Evidence from a Multiple Object Tracking Task [texte imprimé] / Kris EVERS, Auteur ; Lee DE-WIT, Auteur ; Ruth VAN DER HALLEN, Auteur ; Birgitt HAESEN, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur . - p.1779-1787. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-7 (July 2014) . - p.1779-1787 Mots-clés : Attention  Autism spectrum disorder (ASD)  Global interference  Grouping  Multiple object tracking  Weak central coherence Index. décimale : PER Périodiques Résumé : This study was inspired by the more locally oriented processing style in autism spectrum disorders (ASD). A modified multiple object tracking (MOT) task was administered to a group of children with and without ASD. Participants not only had to distinguish moving targets from distracters, but they also had to track targets when they were visually grouped to distracters, a manipulation which has a detrimental effect on tracking performance in adults. MOT performance in the ASD group was also affected by grouping, but this effect was significantly reduced. This result highlights how the reduced bias towards more global processing in ASD could influence further stages of cognition by altering the way in which attention selects information for further processing. En ligne : http://dx.doi.org/10.1007/s10803-013-2031-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236

Drawing Firmer Conclusions: Autistic Children Show No Evidence of a Local Processing Bias in a Controlled Copying Task / Alastair D. SMITH in Journal of Autism and Developmental Disorders, 46-11 (November 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-11 (November 2016) . - p.3481-3492 Titre : Drawing Firmer Conclusions: Autistic Children Show No Evidence of a Local Processing Bias in a Controlled Copying Task Type de document : texte imprimé Auteurs : Alastair D. SMITH, Auteur ; Lorcan KENNY, Auteur ; Anna RUDNICKA, Auteur ; Josie BRISCOE, Auteur ; Elizabeth PELLICANO, Auteur Article en page(s) : p.3481-3492 Langues : Anglais (eng) Mots-clés : Autism  Drawing  Global  Local  Coherence  Grouping Index. décimale : PER Périodiques Résumé : Drawing tasks are frequently used to test competing theories of visuospatial skills in autism. Yet, methodological differences between studies have led to inconsistent findings. To distinguish between accounts based on local bias or global deficit, we present a simple task that has previously revealed dissociable local/global impairments in neuropsychological patients. Autistic and typical children copied corner elements, arranged in a square configuration. Grouping cues were manipulated to test whether global properties affected the accuracy of reproduction. All children were similarly affected by these manipulations. There was no group difference in the reproduction of local elements, although global accuracy was negatively related to better local processing for autistic children. These data speak against influential theories of visuospatial differences in autism. En ligne : http://dx.doi.org/10.1007/s10803-016-2889-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=294 [article] Drawing Firmer Conclusions: Autistic Children Show No Evidence of a Local Processing Bias in a Controlled Copying Task [texte imprimé] / Alastair D. SMITH, Auteur ; Lorcan KENNY, Auteur ; Anna RUDNICKA, Auteur ; Josie BRISCOE, Auteur ; Elizabeth PELLICANO, Auteur . - p.3481-3492. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-11 (November 2016) . - p.3481-3492 Mots-clés : Autism  Drawing  Global  Local  Coherence  Grouping Index. décimale : PER Périodiques Résumé : Drawing tasks are frequently used to test competing theories of visuospatial skills in autism. Yet, methodological differences between studies have led to inconsistent findings. To distinguish between accounts based on local bias or global deficit, we present a simple task that has previously revealed dissociable local/global impairments in neuropsychological patients. Autistic and typical children copied corner elements, arranged in a square configuration. Grouping cues were manipulated to test whether global properties affected the accuracy of reproduction. All children were similarly affected by these manipulations. There was no group difference in the reproduction of local elements, although global accuracy was negatively related to better local processing for autistic children. These data speak against influential theories of visuospatial differences in autism. En ligne : http://dx.doi.org/10.1007/s10803-016-2889-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=294

Multiple Object Tracking Reveals Object-Based Grouping Interference in Children with ASD / Ruth VAN DER HALLEN in Journal of Autism and Developmental Disorders, 48-4 (April 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1341-1349 Titre : Multiple Object Tracking Reveals Object-Based Grouping Interference in Children with ASD Type de document : texte imprimé Auteurs : Ruth VAN DER HALLEN, Auteur ; Kris EVERS, Auteur ; Lee DE-WIT, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.1341-1349 Langues : Anglais (eng) Mots-clés : Attention  Autism spectrum disorder (ASD)  Grouping  Interference  Multiple object tracking (MOT)  Vision research Index. décimale : PER Périodiques Résumé : The multiple object tracking (MOT) paradigm has proven its value in targeting a number of aspects of visual cognition. This study used MOT to investigate the effect of object-based grouping, both in children with and without autism spectrum disorder (ASD). A modified MOT task was administered to both groups, who had to track and distinguish four targets that moved randomly amongst four distracters, irrespective of the grouping condition. No group difference was revealed between children with and without ASD: both showed adequate MOT abilities and a similar amount of grouping interference. Implications of the current result are considered for previous MOT studies, the developmental trajectory of perceptual grouping, and the idea of heightened sensitivity to task characteristics in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2463-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352 [article] Multiple Object Tracking Reveals Object-Based Grouping Interference in Children with ASD [texte imprimé] / Ruth VAN DER HALLEN, Auteur ; Kris EVERS, Auteur ; Lee DE-WIT, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur . - p.1341-1349. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-4 (April 2018) . - p.1341-1349 Mots-clés : Attention  Autism spectrum disorder (ASD)  Grouping  Interference  Multiple object tracking (MOT)  Vision research Index. décimale : PER Périodiques Résumé : The multiple object tracking (MOT) paradigm has proven its value in targeting a number of aspects of visual cognition. This study used MOT to investigate the effect of object-based grouping, both in children with and without autism spectrum disorder (ASD). A modified MOT task was administered to both groups, who had to track and distinguish four targets that moved randomly amongst four distracters, irrespective of the grouping condition. No group difference was revealed between children with and without ASD: both showed adequate MOT abilities and a similar amount of grouping interference. Implications of the current result are considered for previous MOT studies, the developmental trajectory of perceptual grouping, and the idea of heightened sensitivity to task characteristics in ASD. En ligne : http://dx.doi.org/10.1007/s10803-015-2463-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=352

Optimized grouping methods for high and low autistic traits using the Chinese version of the comprehensive autistic trait inventory: A two-wave study of 2214 participants over six months / Shuang MA in Research in Autism, 131 (March 2026)  

Public ISBD [article]  inResearch in Autism > 131 (March 2026) . - 202827 Titre : Optimized grouping methods for high and low autistic traits using the Chinese version of the comprehensive autistic trait inventory: A two-wave study of 2214 participants over six months Type de document : texte imprimé Auteurs : Shuang MA, Auteur ; Xintong LI, Auteur ; Wenrui LI, Auteur ; Xinyi HE, Auteur ; Yijie HUANG, Auteur ; Wendian SHI, Auteur ; Xudong ZHAO, Auteur Article en page(s) : 202827 Langues : Anglais (eng) Mots-clés : Autistic Traits  Autism  Comprehensive Autistic Trait Inventory  Grouping Methods Index. décimale : PER Périodiques Résumé : Autistic traits (ATs) are subclinical behavioral and cognitive characteristics associated with autism, prevalent in the general population. Studying individuals with high ATs offers valuable insights for autism research, particularly when utilizing larger samples with fewer confounding conditions. This study utilized the Chinese Version of the Comprehensive Autistic Trait Inventory (CATI-C) to assess 2214 university students at two time points, six months apart, to identify optimal methods for distinguishing high and low ATs. Internal consistency and test-retest reliability of the CATI-C were evaluated using Cronbach’s α, Pearson’s correlation, and Intraclass Correlation Coefficients (ICC). Kappa (κ) consistency tests, combined with independent-sample t-tests, were used to compare four grouping methods: median, quartile, decile, and mean ± 1 SD. Results indicated excellent internal consistency (Cronbach’s α > 0.88) and strong test-retest reliability (Pearson’s correlation and ICC > 0.67). Both Kappa and t-test analyses identified the mean ± 1 SD (high ATs > 144; low ATs < 103) and decile (high ATs > 148; low ATs < 98) methods as the most stable and effective for distinguishing between high and low ATs. These findings provide critical guidance for optimizing the use of the CATI-C in future research on ATs in Chinese contexts. En ligne : https://doi.org/10.1016/j.reia.2026.202827 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=581 [article] Optimized grouping methods for high and low autistic traits using the Chinese version of the comprehensive autistic trait inventory: A two-wave study of 2214 participants over six months [texte imprimé] / Shuang MA, Auteur ; Xintong LI, Auteur ; Wenrui LI, Auteur ; Xinyi HE, Auteur ; Yijie HUANG, Auteur ; Wendian SHI, Auteur ; Xudong ZHAO, Auteur . - 202827. Langues : Anglais (eng) in Research in Autism > 131 (March 2026) . - 202827 Mots-clés : Autistic Traits  Autism  Comprehensive Autistic Trait Inventory  Grouping Methods Index. décimale : PER Périodiques Résumé : Autistic traits (ATs) are subclinical behavioral and cognitive characteristics associated with autism, prevalent in the general population. Studying individuals with high ATs offers valuable insights for autism research, particularly when utilizing larger samples with fewer confounding conditions. This study utilized the Chinese Version of the Comprehensive Autistic Trait Inventory (CATI-C) to assess 2214 university students at two time points, six months apart, to identify optimal methods for distinguishing high and low ATs. Internal consistency and test-retest reliability of the CATI-C were evaluated using Cronbach’s α, Pearson’s correlation, and Intraclass Correlation Coefficients (ICC). Kappa (κ) consistency tests, combined with independent-sample t-tests, were used to compare four grouping methods: median, quartile, decile, and mean ± 1 SD. Results indicated excellent internal consistency (Cronbach’s α > 0.88) and strong test-retest reliability (Pearson’s correlation and ICC > 0.67). Both Kappa and t-test analyses identified the mean ± 1 SD (high ATs > 144; low ATs < 103) and decile (high ATs > 148; low ATs < 98) methods as the most stable and effective for distinguishing between high and low ATs. These findings provide critical guidance for optimizing the use of the CATI-C in future research on ATs in Chinese contexts. En ligne : https://doi.org/10.1016/j.reia.2026.202827 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=581

Typical perceptual organization in autism: Perceptual grouping and spatial distortion / Ravit AVRAAM in Autism Research, 12-11 (November 2019)  

Public ISBD [article]  inAutism Research > 12-11 (November 2019) . - p.1623-1635 Titre : Typical perceptual organization in autism: Perceptual grouping and spatial distortion Type de document : texte imprimé Auteurs : Ravit AVRAAM, Auteur ; Nahal BINUR, Auteur ; Bat-Sheva HADAD, Auteur Article en page(s) : p.1623-1635 Langues : Anglais (eng) Mots-clés : autism  gestalt principles  grouping  implicit  local global processing  perceptual organization Index. décimale : PER Périodiques Résumé : The extensive literature on global-local processing in people with autism spectrum disorder (ASD) has recently shifted from arguing for a processing impairment among those with ASD to positing an attenuated preference for global processing. One suggestion is that the fast extraction of the global gist is less efficient in ASD, in contrast to the superior attention-driven processing of local elements. To examine this claim of attenuated global processing, the present study tested how perceptual grouping affected the global organization of visual scenes, specifically testing the claim of less mandatory, more optional global processing in ASD. Participants judged the distance between grouped and ungrouped elements in displays in which illusory distortions were inherent in configurations exemplifying the Gestalt principles of organization. Results from six experiments manipulating different Gestalt cues showed a consistent pattern, indicating that for individuals with ASD, as for typically developed (TD) individuals, grouping processes are organizational in nature, incorporating the grouping of related elements while parsing these from other unrelated elements. This parsing is accompanied by distortions in the spatial relationships perceived in the visual scene. ASD participants exhibited an overall larger tendency to overestimate the distances, but they also demonstrated typical perceptual organization processes that were robust and mandatory and, as in neurotypicals, affected the perception of the whole scene. Autism Res 2019. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: It is known that individuals with autism spectrum disorder (ASD) perceive the world in a different way than their typically developed (TD) peers. While TD individuals exhibit strong bias toward processing the global structure of visual scenes, individuals with ASD exhibit enhanced perception of the local elements. We showed that when the local and global levels are not competing, individuals with autism demonstrate robust global organization that operates even when not directly instructed. En ligne : http://dx.doi.org/10.1002/aur.2153 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412 [article] Typical perceptual organization in autism: Perceptual grouping and spatial distortion [texte imprimé] / Ravit AVRAAM, Auteur ; Nahal BINUR, Auteur ; Bat-Sheva HADAD, Auteur . - p.1623-1635. Langues : Anglais (eng) in Autism Research > 12-11 (November 2019) . - p.1623-1635 Mots-clés : autism  gestalt principles  grouping  implicit  local global processing  perceptual organization Index. décimale : PER Périodiques Résumé : The extensive literature on global-local processing in people with autism spectrum disorder (ASD) has recently shifted from arguing for a processing impairment among those with ASD to positing an attenuated preference for global processing. One suggestion is that the fast extraction of the global gist is less efficient in ASD, in contrast to the superior attention-driven processing of local elements. To examine this claim of attenuated global processing, the present study tested how perceptual grouping affected the global organization of visual scenes, specifically testing the claim of less mandatory, more optional global processing in ASD. Participants judged the distance between grouped and ungrouped elements in displays in which illusory distortions were inherent in configurations exemplifying the Gestalt principles of organization. Results from six experiments manipulating different Gestalt cues showed a consistent pattern, indicating that for individuals with ASD, as for typically developed (TD) individuals, grouping processes are organizational in nature, incorporating the grouping of related elements while parsing these from other unrelated elements. This parsing is accompanied by distortions in the spatial relationships perceived in the visual scene. ASD participants exhibited an overall larger tendency to overestimate the distances, but they also demonstrated typical perceptual organization processes that were robust and mandatory and, as in neurotypicals, affected the perception of the whole scene. Autism Res 2019. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: It is known that individuals with autism spectrum disorder (ASD) perceive the world in a different way than their typically developed (TD) peers. While TD individuals exhibit strong bias toward processing the global structure of visual scenes, individuals with ASD exhibit enhanced perception of the local elements. We showed that when the local and global levels are not competing, individuals with autism demonstrate robust global organization that operates even when not directly instructed. En ligne : http://dx.doi.org/10.1002/aur.2153 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412

Grouping-Induced Numerosity Biases Vary with Autistic-Like Personality Traits / Antonella POMÈ in Journal of Autism and Developmental Disorders, 52-3 (March 2022)  

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Object-based attention benefits reveal selective abnormalities of visual integration in autism / Christine M. FALTER-WAGNER in Autism Research, 3-3 (June 2010)  

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Slowed Search in the Context of Unimpaired Grouping in Autism: Evidence from Multiple Conjunction Search / Brandon KEEHN in Autism Research, 9-3 (March 2016)  

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