329 recherche sur le mot-clé 'visual-illusion'

Involuntary interpretation of social cues is compromised in autism spectrum disorders / Tjeerd JELLEMA in Autism Research, 2-4 (August 2009)  

Public ISBD [article]  inAutism Research > 2-4 (August 2009) . - p.192-204 Titre : Involuntary interpretation of social cues is compromised in autism spectrum disorders Type de document : texte imprimé Auteurs : Tjeerd JELLEMA, Auteur ; Herman VAN ENGELAND, Auteur ; Chantal KEMNER, Auteur ; Sophie VAN RIJN, Auteur ; Jeannette LORTEIJE, Auteur ; Mascha VAN T'WOUT, Auteur ; Edward DE HAAN, Auteur Année de publication : 2009 Article en page(s) : p.192-204 Langues : Anglais (eng) Mots-clés : social-cognition visual-illusion involuntary-processing social-attention implied-motion Index. décimale : PER Périodiques Résumé : A new social distance judgment task was used to measure quantitatively the extent to which social cues are immediately and involuntary interpreted by typically developing (TD) individuals and by individuals with autism spectrum disorders (ASD). The task thus tapped into the ability to involuntary pick up the meaning of social cues. The cues tested were social attention and implied biological motion. Task performance of the ASD and TD groups was similarly affected by a perceptual low-level illusion induced by physical characteristics of the stimuli. In contrast, a high-level illusion induced by the implications of the social cues affected only the TD individuals; the ASD individuals remained unaffected (causing them to perform superior to TD controls). The results indicate that despite intact perceptual processing, the immediate involuntary interpretation of social cues can be compromised. We propose that this type of social cue understanding is a distinct process that should be differentiated from reflective social cue understanding and is specifically compromised in ASD. We discuss evidence for an underpinning neural substrate. En ligne : http://dx.doi.org/10.1002/aur.83 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=937 [article] Involuntary interpretation of social cues is compromised in autism spectrum disorders [texte imprimé] / Tjeerd JELLEMA, Auteur ; Herman VAN ENGELAND, Auteur ; Chantal KEMNER, Auteur ; Sophie VAN RIJN, Auteur ; Jeannette LORTEIJE, Auteur ; Mascha VAN T'WOUT, Auteur ; Edward DE HAAN, Auteur . - 2009 . - p.192-204. Langues : Anglais (eng) in Autism Research > 2-4 (August 2009) . - p.192-204 Mots-clés : social-cognition visual-illusion involuntary-processing social-attention implied-motion Index. décimale : PER Périodiques Résumé : A new social distance judgment task was used to measure quantitatively the extent to which social cues are immediately and involuntary interpreted by typically developing (TD) individuals and by individuals with autism spectrum disorders (ASD). The task thus tapped into the ability to involuntary pick up the meaning of social cues. The cues tested were social attention and implied biological motion. Task performance of the ASD and TD groups was similarly affected by a perceptual low-level illusion induced by physical characteristics of the stimuli. In contrast, a high-level illusion induced by the implications of the social cues affected only the TD individuals; the ASD individuals remained unaffected (causing them to perform superior to TD controls). The results indicate that despite intact perceptual processing, the immediate involuntary interpretation of social cues can be compromised. We propose that this type of social cue understanding is a distinct process that should be differentiated from reflective social cue understanding and is specifically compromised in ASD. We discuss evidence for an underpinning neural substrate. En ligne : http://dx.doi.org/10.1002/aur.83 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=937

Multisensory Integration of Low-level Information in Autism Spectrum Disorder: Measuring Susceptibility to the Flash-Beep Illusion / Vanessa A. BAO in Journal of Autism and Developmental Disorders, 47-8 (August 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2535-2543 Titre : Multisensory Integration of Low-level Information in Autism Spectrum Disorder: Measuring Susceptibility to the Flash-Beep Illusion Type de document : texte imprimé Auteurs : Vanessa A. BAO, Auteur ; Victoria DOOBAY, Auteur ; Laurent MOTTRON, Auteur ; Olivier COLLIGNON, Auteur ; Armando BERTONE, Auteur Article en page(s) : p.2535-2543 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Multisensory integration  Flash-beep illusion  Auditory-visual integration Index. décimale : PER Périodiques Résumé : Previous studies have suggested audiovisual multisensory integration (MSI) may be atypical in Autism Spectrum Disorder (ASD). However, much of the research having found an alteration in MSI in ASD involved socio-communicative stimuli. The goal of the current study was to investigate MSI abilities in ASD using lower-level stimuli that are not socio-communicative in nature by testing susceptibility to auditory-guided visual illusions. Adolescents and adults with ASD and typically-developing (TD) individuals were shown to have similar susceptibility to a fission illusion. However, the ASD group was significantly more susceptible to the fusion illusion. Results suggest that individuals with ASD demonstrate MSI on the flash-beep illusion task but that their integration of audiovisual sensory information may be less selective than for TD individuals. En ligne : https://doi.org/10.1007/s10803-017-3172-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315 [article] Multisensory Integration of Low-level Information in Autism Spectrum Disorder: Measuring Susceptibility to the Flash-Beep Illusion [texte imprimé] / Vanessa A. BAO, Auteur ; Victoria DOOBAY, Auteur ; Laurent MOTTRON, Auteur ; Olivier COLLIGNON, Auteur ; Armando BERTONE, Auteur . - p.2535-2543. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-8 (August 2017) . - p.2535-2543 Mots-clés : Autism spectrum disorder  Multisensory integration  Flash-beep illusion  Auditory-visual integration Index. décimale : PER Périodiques Résumé : Previous studies have suggested audiovisual multisensory integration (MSI) may be atypical in Autism Spectrum Disorder (ASD). However, much of the research having found an alteration in MSI in ASD involved socio-communicative stimuli. The goal of the current study was to investigate MSI abilities in ASD using lower-level stimuli that are not socio-communicative in nature by testing susceptibility to auditory-guided visual illusions. Adolescents and adults with ASD and typically-developing (TD) individuals were shown to have similar susceptibility to a fission illusion. However, the ASD group was significantly more susceptible to the fusion illusion. Results suggest that individuals with ASD demonstrate MSI on the flash-beep illusion task but that their integration of audiovisual sensory information may be less selective than for TD individuals. En ligne : https://doi.org/10.1007/s10803-017-3172-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315

Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases / Philippe A. CHOUINARD in Journal of Autism and Developmental Disorders, 46-6 (June 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2224-2239 Titre : Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases Type de document : texte imprimé Auteurs : Philippe A. CHOUINARD, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Irene SPERANDIO, Auteur Article en page(s) : p.2224-2239 Langues : Anglais (eng) Mots-clés : Visual illusions  Shepard’s tabletops illusion  Visual perception  Illusory susceptibility  Autism-spectrum quotient (AQ) Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder and those with autistic tendencies in non-clinical groups are thought to have a perceptual style privileging local details over global integration. We used 13 illusions to investigate this perceptual style in typically developing adults with various levels of autistic traits. Illusory susceptibility was entered into a principal-component analysis. Only one factor, consisting of the Shepard’s tabletops and Square-diamond illusions, was found to have reduced susceptibility as a function of autistic traits. Given that only two illusions were affected and that these illusions depend mostly on the processing of within-object relational properties, we conclude there is something distinct about autistic-like perceptual functioning but not in ways predicted by a preference of local over global elements. En ligne : http://dx.doi.org/10.1007/s10803-016-2753-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289 [article] Susceptibility to Optical Illusions Varies as a Function of the Autism-Spectrum Quotient but not in Ways Predicted by Local–Global Biases [texte imprimé] / Philippe A. CHOUINARD, Auteur ; Katy L. UNWIN, Auteur ; Oriane LANDRY, Auteur ; Irene SPERANDIO, Auteur . - p.2224-2239. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2224-2239 Mots-clés : Visual illusions  Shepard’s tabletops illusion  Visual perception  Illusory susceptibility  Autism-spectrum quotient (AQ) Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum disorder and those with autistic tendencies in non-clinical groups are thought to have a perceptual style privileging local details over global integration. We used 13 illusions to investigate this perceptual style in typically developing adults with various levels of autistic traits. Illusory susceptibility was entered into a principal-component analysis. Only one factor, consisting of the Shepard’s tabletops and Square-diamond illusions, was found to have reduced susceptibility as a function of autistic traits. Given that only two illusions were affected and that these illusions depend mostly on the processing of within-object relational properties, we conclude there is something distinct about autistic-like perceptual functioning but not in ways predicted by a preference of local over global elements. En ligne : http://dx.doi.org/10.1007/s10803-016-2753-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289

Susceptibility to the Shepard illusion in participants with autism: reduced top-down influences within perception? / Peter MITCHELL in Autism Research, 3-3 (June 2010)  

Public ISBD [article]  inAutism Research > 3-3 (June 2010) . - p.113-119 Titre : Susceptibility to the Shepard illusion in participants with autism: reduced top-down influences within perception? Type de document : texte imprimé Auteurs : Peter MITCHELL, Auteur ; Laurent MOTTRON, Auteur ; Danielle ROPAR, Auteur ; Isabelle SOULIERES, Auteur Année de publication : 2010 Article en page(s) : p.113-119 Langues : Anglais (eng) Mots-clés : low-level-perception visual-illusion 3D-perception Index. décimale : PER Périodiques Résumé : Previous research [Ropar & Mitchell, [2002]] has shown that autistic individuals are somewhat immune to biases induced by top-down processes, particularly the influence of previous knowledge on perception. In order to test this hypothesis within perception, 18 participants with autism who had measured intelligence in the normal range were compared against 18 matched controls in their susceptibility to the Shepard illusion. The illusion consists in misperceiving the shape of a parallelogram in the presence of depth cues. It is attributed [Mitchell, Ropar, Ackroyd, & Rajendran, [2005]] to the effect of top-down constraints within perception. The task involved adjusting a stimulus to the dimensions of a template on a computer screen. Both groups were susceptible to the illusion and the illusion effect was stronger when three-dimensional perspective cues were prominent. Notably, participants with autism were less susceptible to the illusion than typically developing individuals. The findings raise the possibility that in some instances top-down influences are attenuated in individuals with autism. En ligne : http://dx.doi.org/10.1002/aur.130 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107 [article] Susceptibility to the Shepard illusion in participants with autism: reduced top-down influences within perception? [texte imprimé] / Peter MITCHELL, Auteur ; Laurent MOTTRON, Auteur ; Danielle ROPAR, Auteur ; Isabelle SOULIERES, Auteur . - 2010 . - p.113-119. Langues : Anglais (eng) in Autism Research > 3-3 (June 2010) . - p.113-119 Mots-clés : low-level-perception visual-illusion 3D-perception Index. décimale : PER Périodiques Résumé : Previous research [Ropar & Mitchell, [2002]] has shown that autistic individuals are somewhat immune to biases induced by top-down processes, particularly the influence of previous knowledge on perception. In order to test this hypothesis within perception, 18 participants with autism who had measured intelligence in the normal range were compared against 18 matched controls in their susceptibility to the Shepard illusion. The illusion consists in misperceiving the shape of a parallelogram in the presence of depth cues. It is attributed [Mitchell, Ropar, Ackroyd, & Rajendran, [2005]] to the effect of top-down constraints within perception. The task involved adjusting a stimulus to the dimensions of a template on a computer screen. Both groups were susceptible to the illusion and the illusion effect was stronger when three-dimensional perspective cues were prominent. Notably, participants with autism were less susceptible to the illusion than typically developing individuals. The findings raise the possibility that in some instances top-down influences are attenuated in individuals with autism. En ligne : http://dx.doi.org/10.1002/aur.130 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107

Accurate or Assumed: Visual Learning in Children with ASD / David TREMBATH in Journal of Autism and Developmental Disorders, 45-10 (October 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-10 (October 2015) . - p.3276-3287 Titre : Accurate or Assumed: Visual Learning in Children with ASD Type de document : texte imprimé Auteurs : David TREMBATH, Auteur ; Giacomo VIVANTI, Auteur ; Teresa IACONO, Auteur ; Cheryl DISSANAYAKE, Auteur Article en page(s) : p.3276-3287 Langues : Anglais (eng) Mots-clés : Autism  Augmentative communication  AAC  Visual attention Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) are often described as visual learners. We tested this assumption in an experiment in which 25 children with ASD, 19 children with global developmental delay (GDD), and 17 typically developing (TD) children were presented a series of videos via an eye tracker in which an actor instructed them to manipulate objects in speech-only and speech + pictures conditions. We found no group differences in visual attention to the stimuli. The GDD and TD groups performed better when pictures were available, whereas the ASD group did not. Performance of children with ASD and GDD was positively correlated with visual attention and receptive language. We found no evidence of a prominent visual learning style in the ASD group. En ligne : http://dx.doi.org/10.1007/s10803-015-2488-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Accurate or Assumed: Visual Learning in Children with ASD [texte imprimé] / David TREMBATH, Auteur ; Giacomo VIVANTI, Auteur ; Teresa IACONO, Auteur ; Cheryl DISSANAYAKE, Auteur . - p.3276-3287. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-10 (October 2015) . - p.3276-3287 Mots-clés : Autism  Augmentative communication  AAC  Visual attention Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) are often described as visual learners. We tested this assumption in an experiment in which 25 children with ASD, 19 children with global developmental delay (GDD), and 17 typically developing (TD) children were presented a series of videos via an eye tracker in which an actor instructed them to manipulate objects in speech-only and speech + pictures conditions. We found no group differences in visual attention to the stimuli. The GDD and TD groups performed better when pictures were available, whereas the ASD group did not. Performance of children with ASD and GDD was positively correlated with visual attention and receptive language. We found no evidence of a prominent visual learning style in the ASD group. En ligne : http://dx.doi.org/10.1007/s10803-015-2488-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Acquisition and Use of 'Priors' in Autism: Typical in Deciding Where to Look, Atypical in Deciding What Is There / Fredrik ALLENMARK in Journal of Autism and Developmental Disorders, 51-10 (October 2021)  

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Age-Related Changes in Conjunctive Visual Search in Children with and without ASD / Grace IAROCCI in Autism Research, 7-2 (April 2014)  

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Age trends in visual exploration of social and nonsocial information in children with autism / Jed T. ELISON in Research in Autism Spectrum Disorders, 6-2 (April-June 2012)  

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Allocentric Versus Egocentric Spatial Memory in Adults with Autism Spectrum Disorder / Melanie RING in Journal of Autism and Developmental Disorders, 48-6 (June 2018)  

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Alpha modulation during working memory encoding predicts neurocognitive impairment in ADHD / Agatha LENARTOWICZ in Journal of Child Psychology and Psychiatry, 60-8 (August 2019)  

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