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Brief Report: Perceptual Load and the Autism Spectrum in Typically Developed Individuals / Andrew P. BAYLISS in Journal of Autism and Developmental Disorders, 41-11 (November 2011)
[article]
Titre : Brief Report: Perceptual Load and the Autism Spectrum in Typically Developed Individuals Type de document : Texte imprimé et/ou numérique Auteurs : Andrew P. BAYLISS, Auteur ; Ada KRITIKOS, Auteur Année de publication : 2011 Article en page(s) : p.1573-1578 Langues : Anglais (eng) Mots-clés : Flanker task Autism spectrum quotient Perceptual load Attention Visual search Index. décimale : PER Périodiques Résumé : A fundamental task of the cognitive system is to prioritize behaviourally relevant sensory inputs for processing at the expense of irrelevant inputs. In a study of neurotypical participants (n = 179), we utilized a brief flanker interference task while varying the perceptual load of the visual display. Typically, increasing perceptual load (i.e., with greater numbers of search items) reduces interference from a competing peripheral distractor. We show that individuals who score above average on the Autism Spectrum Quotient (AQ) show stronger interference at high perceptual load than individuals with below-average AQ scores. This is consistent with recent findings in individuals with autism spectrum conditions, and supports the idea that the cognitive style of the autistic brain is reflected in a broader phenotype across the population. En ligne : http://dx.doi.org/10.1007/s10803-010-1159-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=147
in Journal of Autism and Developmental Disorders > 41-11 (November 2011) . - p.1573-1578[article] Brief Report: Perceptual Load and the Autism Spectrum in Typically Developed Individuals [Texte imprimé et/ou numérique] / Andrew P. BAYLISS, Auteur ; Ada KRITIKOS, Auteur . - 2011 . - p.1573-1578.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-11 (November 2011) . - p.1573-1578
Mots-clés : Flanker task Autism spectrum quotient Perceptual load Attention Visual search Index. décimale : PER Périodiques Résumé : A fundamental task of the cognitive system is to prioritize behaviourally relevant sensory inputs for processing at the expense of irrelevant inputs. In a study of neurotypical participants (n = 179), we utilized a brief flanker interference task while varying the perceptual load of the visual display. Typically, increasing perceptual load (i.e., with greater numbers of search items) reduces interference from a competing peripheral distractor. We show that individuals who score above average on the Autism Spectrum Quotient (AQ) show stronger interference at high perceptual load than individuals with below-average AQ scores. This is consistent with recent findings in individuals with autism spectrum conditions, and supports the idea that the cognitive style of the autistic brain is reflected in a broader phenotype across the population. En ligne : http://dx.doi.org/10.1007/s10803-010-1159-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=147 Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism / J. TILLMANN in Journal of Autism and Developmental Disorders, 49-2 (February 2019)
[article]
Titre : Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism Type de document : Texte imprimé et/ou numérique Auteurs : J. TILLMANN, Auteur ; J. SWETTENHAM, Auteur Article en page(s) : p.762-772 Langues : Anglais (eng) Mots-clés : Auditory detection sensitivity Autism spectrum disorder Perceptual load Selective attention Task difficulty Index. décimale : PER Périodiques Résumé : To test a central assumption of the increased perceptual capacity account in individuals with Autism Spectrum Disorder (ASD), the effects of perceptual load and target-stimulus degradation on auditory detection sensitivity were contrasted. Fourteen adolescents with ASD and 16 neurotypical controls performed a visual letter search task under three conditions: low perceptual load, high perceptual load and low perceptual load with a degraded target while simultaneously detecting an auditory tone in noise. For both participants with ASD and neurotypical controls, increasing perceptual load and target degradation increased task difficulty as indexed by reaction times and accuracy. However, only increasing perceptual load reduced subsequent auditory detection sensitivity. The study confirms that perceptual load, and not task difficulty, modulates selective attention in ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3766-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=382
in Journal of Autism and Developmental Disorders > 49-2 (February 2019) . - p.762-772[article] Contrasting the Effects of Task Difficulty and Perceptual Load on Auditory Detection Sensitivity in Individuals with Autism [Texte imprimé et/ou numérique] / J. TILLMANN, Auteur ; J. SWETTENHAM, Auteur . - p.762-772.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 49-2 (February 2019) . - p.762-772
Mots-clés : Auditory detection sensitivity Autism spectrum disorder Perceptual load Selective attention Task difficulty Index. décimale : PER Périodiques Résumé : To test a central assumption of the increased perceptual capacity account in individuals with Autism Spectrum Disorder (ASD), the effects of perceptual load and target-stimulus degradation on auditory detection sensitivity were contrasted. Fourteen adolescents with ASD and 16 neurotypical controls performed a visual letter search task under three conditions: low perceptual load, high perceptual load and low perceptual load with a degraded target while simultaneously detecting an auditory tone in noise. For both participants with ASD and neurotypical controls, increasing perceptual load and target degradation increased task difficulty as indexed by reaction times and accuracy. However, only increasing perceptual load reduced subsequent auditory detection sensitivity. The study confirms that perceptual load, and not task difficulty, modulates selective attention in ASD. En ligne : http://dx.doi.org/10.1007/s10803-018-3766-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=382 The Effect of Visual Perceptual Load on Auditory Awareness in Autism Spectrum Disorder / Julian TILLMANN in Journal of Autism and Developmental Disorders, 45-10 (October 2015)
[article]
Titre : The Effect of Visual Perceptual Load on Auditory Awareness in Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Julian TILLMANN, Auteur ; Andrea OLGUIN, Auteur ; Jyrki TUOMAINEN, Auteur ; John SWETTENHAM, Auteur Article en page(s) : p.3297-3307 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Auditory awareness Attention Perceptual load Index. décimale : PER Périodiques Résumé : Recent work on visual selective attention has shown that individuals with Autism Spectrum Disorder (ASD) demonstrate an increased perceptual capacity. The current study examined whether increasing visual perceptual load also has less of an effect on auditory awareness in children with ASD. Participants performed either a high- or low load version of a line discrimination task. On a critical trial, an unexpected, task-irrelevant auditory stimulus was played concurrently with the visual stimulus. In contrast to typically developing (TD) children, children with ASD demonstrated similar detection rates across perceptual load conditions, and reported greater awareness than TD children in the high perceptual load condition. These findings suggest an increased perceptual capacity in children with ASD that operates across sensory modalities. En ligne : http://dx.doi.org/10.1007/s10803-015-2491-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267
in Journal of Autism and Developmental Disorders > 45-10 (October 2015) . - p.3297-3307[article] The Effect of Visual Perceptual Load on Auditory Awareness in Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Julian TILLMANN, Auteur ; Andrea OLGUIN, Auteur ; Jyrki TUOMAINEN, Auteur ; John SWETTENHAM, Auteur . - p.3297-3307.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-10 (October 2015) . - p.3297-3307
Mots-clés : Autism spectrum disorder Auditory awareness Attention Perceptual load Index. décimale : PER Périodiques Résumé : Recent work on visual selective attention has shown that individuals with Autism Spectrum Disorder (ASD) demonstrate an increased perceptual capacity. The current study examined whether increasing visual perceptual load also has less of an effect on auditory awareness in children with ASD. Participants performed either a high- or low load version of a line discrimination task. On a critical trial, an unexpected, task-irrelevant auditory stimulus was played concurrently with the visual stimulus. In contrast to typically developing (TD) children, children with ASD demonstrated similar detection rates across perceptual load conditions, and reported greater awareness than TD children in the high perceptual load condition. These findings suggest an increased perceptual capacity in children with ASD that operates across sensory modalities. En ligne : http://dx.doi.org/10.1007/s10803-015-2491-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 The Effect of Visual Perceptual Load on Auditory Awareness of Social vs. Non-social Stimuli in Individuals with Autism / Julian TILLMANN in Journal of Autism and Developmental Disorders, 51-4 (April 2021)
[article]
Titre : The Effect of Visual Perceptual Load on Auditory Awareness of Social vs. Non-social Stimuli in Individuals with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Julian TILLMANN, Auteur ; Jyrki TUOMAINEN, Auteur ; John SWETTENHAM, Auteur Article en page(s) : p.1028-1038 Langues : Anglais (eng) Mots-clés : Attention Auditory awareness Autism spectrum disorder Perceptual load Social stimulus Index. décimale : PER Périodiques Résumé : This study examined the effect of increasing visual perceptual load on auditory awareness for social and non-social stimuli in adolescents with autism spectrum disorder (ASD, n?=?63) and typically developing (TD, n?=?62) adolescents. Using an inattentional deafness paradigm, a socially meaningful ('Hi') or a non-social (neutral tone) critical stimulus (CS) was unexpectedly presented under high and low load. For the social CS both groups continued to show high awareness rates as load increased. Awareness rates for the non-social stimulus were reduced when load increased for the TD, but not the ASD group. The findings indicate enhanced capacity for non-social stimuli in ASD compared to TD, and a special attentional status for social stimuli in the TD group. En ligne : http://dx.doi.org/10.1007/s10803-020-04587-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=445
in Journal of Autism and Developmental Disorders > 51-4 (April 2021) . - p.1028-1038[article] The Effect of Visual Perceptual Load on Auditory Awareness of Social vs. Non-social Stimuli in Individuals with Autism [Texte imprimé et/ou numérique] / Julian TILLMANN, Auteur ; Jyrki TUOMAINEN, Auteur ; John SWETTENHAM, Auteur . - p.1028-1038.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 51-4 (April 2021) . - p.1028-1038
Mots-clés : Attention Auditory awareness Autism spectrum disorder Perceptual load Social stimulus Index. décimale : PER Périodiques Résumé : This study examined the effect of increasing visual perceptual load on auditory awareness for social and non-social stimuli in adolescents with autism spectrum disorder (ASD, n?=?63) and typically developing (TD, n?=?62) adolescents. Using an inattentional deafness paradigm, a socially meaningful ('Hi') or a non-social (neutral tone) critical stimulus (CS) was unexpectedly presented under high and low load. For the social CS both groups continued to show high awareness rates as load increased. Awareness rates for the non-social stimulus were reduced when load increased for the TD, but not the ASD group. The findings indicate enhanced capacity for non-social stimuli in ASD compared to TD, and a special attentional status for social stimuli in the TD group. En ligne : http://dx.doi.org/10.1007/s10803-020-04587-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=445 Is There a Limit to the Superiority of Individuals with ASD in Visual Search? / Roy S. HESSELS in Journal of Autism and Developmental Disorders, 44-2 (February 2014)
[article]
Titre : Is There a Limit to the Superiority of Individuals with ASD in Visual Search? Type de document : Texte imprimé et/ou numérique Auteurs : Roy S. HESSELS, Auteur ; Ignace T. C. HOOGE, Auteur ; Tineke M. SNIJDERS, Auteur ; Chantal KEMNER, Auteur Article en page(s) : p.443-451 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Visual search Superiority Perceptual load Load theory Index. décimale : PER Périodiques Résumé : Superiority in visual search for individuals diagnosed with autism spectrum disorder (ASD) is a well-reported finding. We administered two visual search tasks to individuals with ASD and matched controls. One showed no difference between the groups, and one did show the expected superior performance for individuals with ASD. These results offer an explanation, formulated in terms of load theory. We suggest that there is a limit to the superiority in visual search for individuals with ASD, related to the perceptual load of the stimuli. When perceptual load becomes so high that no additional task-(ir)relevant information can be processed, performance will be based on single stimulus identification, in which no differences between individuals with ASD and controls have been demonstrated. En ligne : http://dx.doi.org/10.1007/s10803-013-1886-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223
in Journal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.443-451[article] Is There a Limit to the Superiority of Individuals with ASD in Visual Search? [Texte imprimé et/ou numérique] / Roy S. HESSELS, Auteur ; Ignace T. C. HOOGE, Auteur ; Tineke M. SNIJDERS, Auteur ; Chantal KEMNER, Auteur . - p.443-451.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.443-451
Mots-clés : Autism spectrum disorder Visual search Superiority Perceptual load Load theory Index. décimale : PER Périodiques Résumé : Superiority in visual search for individuals diagnosed with autism spectrum disorder (ASD) is a well-reported finding. We administered two visual search tasks to individuals with ASD and matched controls. One showed no difference between the groups, and one did show the expected superior performance for individuals with ASD. These results offer an explanation, formulated in terms of load theory. We suggest that there is a limit to the superiority in visual search for individuals with ASD, related to the perceptual load of the stimuli. When perceptual load becomes so high that no additional task-(ir)relevant information can be processed, performance will be based on single stimulus identification, in which no differences between individuals with ASD and controls have been demonstrated. En ligne : http://dx.doi.org/10.1007/s10803-013-1886-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223