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Auteur Lilach SHALEV |
Documents disponibles écrits par cet auteur (2)
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Hierarchical Processing in ASD is Driven by Exaggerated Salience Effects, not Local Bias / Ayelet BAISA in Journal of Autism and Developmental Disorders, 51-2 (February 2021)
[article]
Titre : Hierarchical Processing in ASD is Driven by Exaggerated Salience Effects, not Local Bias Type de document : Texte imprimé et/ou numérique Auteurs : Ayelet BAISA, Auteur ; Carmel MEVORACH, Auteur ; Lilach SHALEV, Auteur Article en page(s) : p.666-676 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD) Global perception Hierarchical perception Local perception Navon letters Salience Index. décimale : PER Périodiques Résumé : The role of relative salience in processing of hierarchical stimuli in individuals with autism spectrum disorder (ASD) was examined in this study. Participants with ASD and typically developing controls performed a Navon letters task under conditions of global salience, local salience or equal salience of both levels. Results revealed no group differences in level of processing (global or local) and no local bias for ASD. Rather, both groups showed better performance when targets were more salient compared to when distractors were more salient. Importantly, participants with ASD exhibited increased sensitivity to salience at the distractor level. We conclude that inconsistent findings in the context of global/local processing in ASD may stem from such exaggerated salience effects. En ligne : http://dx.doi.org/10.1007/s10803-020-04578-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=440
in Journal of Autism and Developmental Disorders > 51-2 (February 2021) . - p.666-676[article] Hierarchical Processing in ASD is Driven by Exaggerated Salience Effects, not Local Bias [Texte imprimé et/ou numérique] / Ayelet BAISA, Auteur ; Carmel MEVORACH, Auteur ; Lilach SHALEV, Auteur . - p.666-676.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 51-2 (February 2021) . - p.666-676
Mots-clés : Autism spectrum disorder (ASD) Global perception Hierarchical perception Local perception Navon letters Salience Index. décimale : PER Périodiques Résumé : The role of relative salience in processing of hierarchical stimuli in individuals with autism spectrum disorder (ASD) was examined in this study. Participants with ASD and typically developing controls performed a Navon letters task under conditions of global salience, local salience or equal salience of both levels. Results revealed no group differences in level of processing (global or local) and no local bias for ASD. Rather, both groups showed better performance when targets were more salient compared to when distractors were more salient. Importantly, participants with ASD exhibited increased sensitivity to salience at the distractor level. We conclude that inconsistent findings in the context of global/local processing in ASD may stem from such exaggerated salience effects. En ligne : http://dx.doi.org/10.1007/s10803-020-04578-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=440 Reduced distractor interference in neurotypical adults with high expression of autistic traits irrespective of stimulus type / Mayra MULLER SPANIOL in Autism Research, 11-10 (October 2018)
[article]
Titre : Reduced distractor interference in neurotypical adults with high expression of autistic traits irrespective of stimulus type Type de document : Texte imprimé et/ou numérique Auteurs : Mayra MULLER SPANIOL, Auteur ; Lilach SHALEV, Auteur ; Carmel MEVORACH, Auteur Article en page(s) : p.e2005 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Attention atypicality is evident in autism spectrum disorder (ASD) and its broader phenotype with previous studies suggesting that in some cases participants can be more efficient at ignoring distracting irrelevant information. However, it is not clear to what extent this improved filtering capacity is driven by perceptual atypicality, such as local bias or atypical face processing, which is also sometimes reported in these populations. For instance, better ability to ignore the global aspect of a display could stem from a local perceptual bias rather than from improved distractor inhibition. To test whether distractor suppression per se, is associated with high expression of autistic traits, in the present study a large cohort of neurotypical participants (n = 218), in whom expression of autistic traits was assessed, performed two nonspatial attention selection tasks with different categories of stimuli (global/local and face/scene). Importantly, both tasks involved a conflict with one aspect of the stimuli designated as the target and the other designated as the distractor. Across the two experiments adults with high autistic traits were overall, better able to ignore distractors than adults with low autistic traits, irrespective of the type of perceptual processing involved. These results support the notion that autistic tendencies are associated with increased attention filtering (at least when target and distractor remain constant) which is not dependent on perceptual biases. Thus, future work in the broader autism phenotype should explicitly consider the effect played by attention mechanisms in this population. Autism Res 2018, 11: 1345–1355. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary In the present study, we show that neurotypical adults with high autistic traits are better able to avoid distraction from conspicuous (but completely irrelevant) distractors when told in advance to do so. This ability is not affected by the type of visual input (for instance, whether the distractor is a face or whether small rather than large letters should be reported). This finding could be important in better understanding the way attention is utilized in Autism. En ligne : http://dx.doi.org/10.1002/aur.2005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369
in Autism Research > 11-10 (October 2018) . - p.e2005[article] Reduced distractor interference in neurotypical adults with high expression of autistic traits irrespective of stimulus type [Texte imprimé et/ou numérique] / Mayra MULLER SPANIOL, Auteur ; Lilach SHALEV, Auteur ; Carmel MEVORACH, Auteur . - p.e2005.
Langues : Anglais (eng)
in Autism Research > 11-10 (October 2018) . - p.e2005
Index. décimale : PER Périodiques Résumé : Attention atypicality is evident in autism spectrum disorder (ASD) and its broader phenotype with previous studies suggesting that in some cases participants can be more efficient at ignoring distracting irrelevant information. However, it is not clear to what extent this improved filtering capacity is driven by perceptual atypicality, such as local bias or atypical face processing, which is also sometimes reported in these populations. For instance, better ability to ignore the global aspect of a display could stem from a local perceptual bias rather than from improved distractor inhibition. To test whether distractor suppression per se, is associated with high expression of autistic traits, in the present study a large cohort of neurotypical participants (n = 218), in whom expression of autistic traits was assessed, performed two nonspatial attention selection tasks with different categories of stimuli (global/local and face/scene). Importantly, both tasks involved a conflict with one aspect of the stimuli designated as the target and the other designated as the distractor. Across the two experiments adults with high autistic traits were overall, better able to ignore distractors than adults with low autistic traits, irrespective of the type of perceptual processing involved. These results support the notion that autistic tendencies are associated with increased attention filtering (at least when target and distractor remain constant) which is not dependent on perceptual biases. Thus, future work in the broader autism phenotype should explicitly consider the effect played by attention mechanisms in this population. Autism Res 2018, 11: 1345–1355. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary In the present study, we show that neurotypical adults with high autistic traits are better able to avoid distraction from conspicuous (but completely irrelevant) distractors when told in advance to do so. This ability is not affected by the type of visual input (for instance, whether the distractor is a face or whether small rather than large letters should be reported). This finding could be important in better understanding the way attention is utilized in Autism. En ligne : http://dx.doi.org/10.1002/aur.2005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369