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 et/ou numérique 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 et/ou numérique] / 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

Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing / Lien VAN EYLEN in Research in Autism Spectrum Disorders, 7-7 (July 2013)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 7-7 (July 2013) . - p.913-922 Titre : Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing Type de document : Texte imprimé et/ou numérique Auteurs : Lien VAN EYLEN, Auteur ; Peter DE GRAEF, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur Article en page(s) : p.913-922 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Weak central coherence  Context effects  Scene perception  Eye-movements Index. décimale : PER Périodiques Résumé : Several studies have investigated contextual influences on visual object processing in individuals with autism spectrum disorder (ASD) and failed to find reduced context effects. However, these studies did not properly account for local inter-object effects and/or the influence of post-perceptual processes, leaving it unclear whether individuals with ASD display equally large global top-down effects of context, or whether they rely on a more local mechanism producing the same result. In this study, an eye-movement paradigm was used to investigate implicitly induced context effects on visual object processing in children with ASD compared to matched controls. To find out whether the context effects in the ASD group were, to the same extent, due to early top-down influences on object recognition, we also examined the interaction between context effects and the ease of object recognition. Both groups displayed equally large context effects and congruent contextual information facilitated object recognition to the same extent in both groups. This indicates that the context effects in the ASD group did not result from the operation of a more local, less top-down mechanism. These findings contradict predictions based on the weak central coherence account. However, a good alternative to explain all inconsistencies is currently lacking. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.04.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=199 [article] Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing [Texte imprimé et/ou numérique] / Lien VAN EYLEN, Auteur ; Peter DE GRAEF, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur . - p.913-922. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 7-7 (July 2013) . - p.913-922 Mots-clés : Autism spectrum disorders  Weak central coherence  Context effects  Scene perception  Eye-movements Index. décimale : PER Périodiques Résumé : Several studies have investigated contextual influences on visual object processing in individuals with autism spectrum disorder (ASD) and failed to find reduced context effects. However, these studies did not properly account for local inter-object effects and/or the influence of post-perceptual processes, leaving it unclear whether individuals with ASD display equally large global top-down effects of context, or whether they rely on a more local mechanism producing the same result. In this study, an eye-movement paradigm was used to investigate implicitly induced context effects on visual object processing in children with ASD compared to matched controls. To find out whether the context effects in the ASD group were, to the same extent, due to early top-down influences on object recognition, we also examined the interaction between context effects and the ease of object recognition. Both groups displayed equally large context effects and congruent contextual information facilitated object recognition to the same extent in both groups. This indicates that the context effects in the ASD group did not result from the operation of a more local, less top-down mechanism. These findings contradict predictions based on the weak central coherence account. However, a good alternative to explain all inconsistencies is currently lacking. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.04.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=199

Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? / Lien VAN EYLEN in Research in Autism Spectrum Disorders, 5-4 (October-December 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1390-1401 Titre : Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? Type de document : Texte imprimé et/ou numérique Auteurs : Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur Année de publication : 2011 Article en page(s) : p.1390-1401 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Cognitive flexibility  Task-switching  Wisconsin Card Sorting Task  Disengagement  Task instructions Index. décimale : PER Périodiques Résumé : The Wisconsin Card Sorting Task (WCST) is the only cognitive flexibility task that has consistently shown deficits in individuals with an autism spectrum disorder (ASD). As this is the only task characterized by limited explicit task instructions and a high degree of disengagement required to perform the switch, we hypothesized that cognitive flexibility deficits of individuals with ASD might only become apparent in situations fulfilling these requirements. However, the WCST involves various additional cognitive processes besides switching, making it uncertain whether difficulties are indeed due to cognitive flexibility impairments. The aim of this study was to investigate whether individuals with ASD show cognitive flexibility impairments on a more controlled task-switching variant of the WCST, still fulfilling both requirements. We therefore developed such a task and administered it to 40 high-functioning children with ASD and 40 age- and IQ- matched typically developing controls. As predicted, individuals with ASD made more perseveration errors and had a significantly higher switch cost than typically developing controls, but they performed equally well on the control measures. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.025 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125 [article] Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? [Texte imprimé et/ou numérique] / Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur . - 2011 . - p.1390-1401. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1390-1401 Mots-clés : Autism spectrum disorders  Cognitive flexibility  Task-switching  Wisconsin Card Sorting Task  Disengagement  Task instructions Index. décimale : PER Périodiques Résumé : The Wisconsin Card Sorting Task (WCST) is the only cognitive flexibility task that has consistently shown deficits in individuals with an autism spectrum disorder (ASD). As this is the only task characterized by limited explicit task instructions and a high degree of disengagement required to perform the switch, we hypothesized that cognitive flexibility deficits of individuals with ASD might only become apparent in situations fulfilling these requirements. However, the WCST involves various additional cognitive processes besides switching, making it uncertain whether difficulties are indeed due to cognitive flexibility impairments. The aim of this study was to investigate whether individuals with ASD show cognitive flexibility impairments on a more controlled task-switching variant of the WCST, still fulfilling both requirements. We therefore developed such a task and administered it to 40 high-functioning children with ASD and 40 age- and IQ- matched typically developing controls. As predicted, individuals with ASD made more perseveration errors and had a significantly higher switch cost than typically developing controls, but they performed equally well on the control measures. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.025 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125

Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions / Kris EVERS in Research in Autism Spectrum Disorders, 5-4 (October-December 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1327-1342 Titre : Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions Type de document : Texte imprimé et/ou numérique Auteurs : Kris EVERS, Auteur ; Ilse L.J. NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2011 Article en page(s) : p.1327-1342 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD)  Matching  Facial emotional expressions  Compensation strategy  Weak central coherence  Enhanced perceptual functioning Index. décimale : PER Périodiques Résumé : Background Children with an autism spectrum disorder (ASD) are known to have an atypical visual perception, with deficits in automatic Gestalt formation and an enhanced processing of visual details. In addition, they are sometimes found to have difficulties in emotion processing. Methods In three experiments, we investigated whether 7-to-11-year old children with ASD were showing superiorities or deficits in matching tasks that required focusing on faces with an emotional expression. Throughout these experiments, we increased the complexity of the stimuli and tasks demands. Results and conclusions In matching faces with emotional expressions, children with ASD were not able to show superior processing of details in any of the three experiments. They were able to compensate their inferior processing of emotions in some of the experiments (e.g., by using a slower, more sequential processing style). However, when stimulus complexity (e.g., dynamic facial expressions) or task demands (e.g., extracting and remembering the relevant stimulus dimension) increased, they were no longer able to do so, and they did show performance deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125 [article] Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions [Texte imprimé et/ou numérique] / Kris EVERS, Auteur ; Ilse L.J. NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur . - 2011 . - p.1327-1342. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1327-1342 Mots-clés : Autism spectrum disorder (ASD)  Matching  Facial emotional expressions  Compensation strategy  Weak central coherence  Enhanced perceptual functioning Index. décimale : PER Périodiques Résumé : Background Children with an autism spectrum disorder (ASD) are known to have an atypical visual perception, with deficits in automatic Gestalt formation and an enhanced processing of visual details. In addition, they are sometimes found to have difficulties in emotion processing. Methods In three experiments, we investigated whether 7-to-11-year old children with ASD were showing superiorities or deficits in matching tasks that required focusing on faces with an emotional expression. Throughout these experiments, we increased the complexity of the stimuli and tasks demands. Results and conclusions In matching faces with emotional expressions, children with ASD were not able to show superior processing of details in any of the three experiments. They were able to compensate their inferior processing of emotions in some of the experiments (e.g., by using a slower, more sequential processing style). However, when stimulus complexity (e.g., dynamic facial expressions) or task demands (e.g., extracting and remembering the relevant stimulus dimension) increased, they were no longer able to do so, and they did show performance deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125

Corrigendum to “Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies?” [Res. Autism Spectr. Disord. 5 (2011) 1390–1401] / Lien VAN EYLEN in Research in Autism Spectrum Disorders, 23 (March 2016)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 23 (March 2016) . - p.245 Titre : Corrigendum to “Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies?” [Res. Autism Spectr. Disord. 5 (2011) 1390–1401] Type de document : Texte imprimé et/ou numérique Auteurs : Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse NOENS, Auteur Article en page(s) : p.245 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1016/j.rasd.2016.01.008 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=283 [article] Corrigendum to “Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies?” [Res. Autism Spectr. Disord. 5 (2011) 1390–1401] [Texte imprimé et/ou numérique] / Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse NOENS, Auteur . - p.245. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 23 (March 2016) . - p.245 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1016/j.rasd.2016.01.008 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=283

Discrimination sensitivity of visual shapes sharpens in autistic adults but only after explicit category learning / Jaana VAN OVERWALLE in Molecular Autism, 15 (2024)  

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Disturbed Interplay Between Mid- and High-Level Vision in ASD? Evidence from a Contour Identification Task with Everyday Objects / Kris EVERS in Journal of Autism and Developmental Disorders, 44-4 (April 2014)  

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Ensemble perception in autism spectrum disorder: Member-identification versus mean-discrimination / Ruth VAN DER HALLEN in Autism Research, 10-7 (July 2017)  

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Executive functioning and local-global visual processing: candidate endophenotypes for autism spectrum disorder? / Lien VAN EYLEN in Journal of Child Psychology and Psychiatry, 58-3 (March 2017)  

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Gist perception in adolescents with and without ASD: Ultra-rapid categorization of meaningful real-life scenes / Steven VANMARCKE in Research in Autism Spectrum Disorders, 29-30 (September–October 2016)  

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Hierarchical Letters in ASD: High Stimulus Variability Under Different Attentional Modes / Ruth VAN DER HALLEN in Journal of Autism and Developmental Disorders, 47-6 (June 2017)  

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Impaired Identification of Impoverished Animate but not Inanimate Objects in Adults With High-Functioning Autism Spectrum Disorder / Hollie G. BURNETT in Autism Research, 8-1 (February 2015)  

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In the Eye of the Beholder: Rapid Visual Perception of Real-Life Scenes by Young Adults with and Without ASD / Steven VANMARCKE in Journal of Autism and Developmental Disorders, 46-8 (August 2016)  

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A multilevel investigation of sensory sensitivity and responsivity in autistic adults / Laurie-Anne SAPEY-TRIOMPHE in Autism Research, 16-7 (July 2023)  

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No Differences in Emotion Recognition Strategies in Children with Autism Spectrum Disorder: Evidence from Hybrid Faces / Kris EVERS in Autism Research and Treatment, (February 2014)  

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