Individuals with Autistic-Like Traits Show Reduced Lateralization on a Greyscales Task / Michael C. W. ENGLISH 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.3390-3395 Titre : Individuals with Autistic-Like Traits Show Reduced Lateralization on a Greyscales Task Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Article en page(s) : p.3390-3395 Langues : Anglais (eng) Mots-clés : Autistic-like traits  Left visual field (LVF) bias  Brain laterality  Spatial attention Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum conditions attend less to the left side of centrally presented face stimuli compared to neurotypical individuals, suggesting a reduction in right hemisphere activation. We examined whether a similar bias exists for non-facial stimuli in a large sample of neurotypical adults rated above- or below-average on the autism spectrum quotient (AQ). Using the “greyscales” task, we found the typical leftward bias in the below-average group was significantly reduced in the above-average group. Moreover, a negative correlation between leftward bias and the social skills factor of the AQ suggested a link between atypical hemispheric activation and social difficulties in high-AQ trait individuals that extends to non-facial stimuli. En ligne : http://dx.doi.org/10.1007/s10803-015-2493-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=268 [article] Individuals with Autistic-Like Traits Show Reduced Lateralization on a Greyscales Task [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - p.3390-3395. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-10 (October 2015) . - p.3390-3395 Mots-clés : Autistic-like traits  Left visual field (LVF) bias  Brain laterality  Spatial attention Index. décimale : PER Périodiques Résumé : Individuals with autism spectrum conditions attend less to the left side of centrally presented face stimuli compared to neurotypical individuals, suggesting a reduction in right hemisphere activation. We examined whether a similar bias exists for non-facial stimuli in a large sample of neurotypical adults rated above- or below-average on the autism spectrum quotient (AQ). Using the “greyscales” task, we found the typical leftward bias in the below-average group was significantly reduced in the above-average group. Moreover, a negative correlation between leftward bias and the social skills factor of the AQ suggested a link between atypical hemispheric activation and social difficulties in high-AQ trait individuals that extends to non-facial stimuli. En ligne : http://dx.doi.org/10.1007/s10803-015-2493-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=268

Modulating attentional biases of adults with autistic traits using transcranial direct current stimulation: A pilot study / Michael C. W. ENGLISH in Autism Research, 11-2 (February 2018)  

Public ISBD [article]  inAutism Research > 11-2 (February 2018) . - p.385-390 Titre : Modulating attentional biases of adults with autistic traits using transcranial direct current stimulation: A pilot study Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Emma S. KITCHING, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Année de publication : 2018 Article en page(s) : p.385-390 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : While neurotypical individuals over?attend to the left?side of centrally?presented visual stimuli, this bias is reduced in individuals with autism/high levels of autistic traits. Because this difference is hypothesized to reflect relative reductions in right?hemisphere activation, it follows that increasing right?hemisphere activation should increase leftward bias. We administered transcranial direct current stimulation (tDCS) over the right posterior parietal cortex to individuals with low levels (n?=?19) and high levels (n?=?19) of autistic traits whilst they completed a greyscales task. Anodal tDCS increased leftward bias for high?trait, but not low?trait, individuals, while cathodal tDCS had no effect. This outcome suggests that typical attentional patterns driven by hemispheric lateralization could potentially be restored following right?hemisphere stimulation in high?trait individuals. Autism Res 2018, 11: 385–390. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary Attentional differences between individuals with and without autism may reflect differences in underlying activation of the left and right hemispheres. In this study, we combine an attentional task that reflects relative hemispheric activation with non?invasive cortical stimulation, and show that attentional differences between healthy individuals with low and high levels of autistic?like traits can be reduced. This outcome is encouraging, and suggests that other aspects of attention in autism (e.g., face processing) may stand to benefit from similar stimulation techniques. En ligne : https://doi.org/10.1002/aur.1895 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=334 [article] Modulating attentional biases of adults with autistic traits using transcranial direct current stimulation: A pilot study [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Emma S. KITCHING, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - 2018 . - p.385-390. Langues : Anglais (eng) in Autism Research > 11-2 (February 2018) . - p.385-390 Index. décimale : PER Périodiques Résumé : While neurotypical individuals over?attend to the left?side of centrally?presented visual stimuli, this bias is reduced in individuals with autism/high levels of autistic traits. Because this difference is hypothesized to reflect relative reductions in right?hemisphere activation, it follows that increasing right?hemisphere activation should increase leftward bias. We administered transcranial direct current stimulation (tDCS) over the right posterior parietal cortex to individuals with low levels (n?=?19) and high levels (n?=?19) of autistic traits whilst they completed a greyscales task. Anodal tDCS increased leftward bias for high?trait, but not low?trait, individuals, while cathodal tDCS had no effect. This outcome suggests that typical attentional patterns driven by hemispheric lateralization could potentially be restored following right?hemisphere stimulation in high?trait individuals. Autism Res 2018, 11: 385–390. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary Attentional differences between individuals with and without autism may reflect differences in underlying activation of the left and right hemispheres. In this study, we combine an attentional task that reflects relative hemispheric activation with non?invasive cortical stimulation, and show that attentional differences between healthy individuals with low and high levels of autistic?like traits can be reduced. This outcome is encouraging, and suggests that other aspects of attention in autism (e.g., face processing) may stand to benefit from similar stimulation techniques. En ligne : https://doi.org/10.1002/aur.1895 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=334

Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits / Michael C. W. ENGLISH in Journal of Autism and Developmental Disorders, 47-9 (September 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-9 (September 2017) . - p.2757-2769 Titre : Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Article en page(s) : p.2757-2769 Langues : Anglais (eng) Mots-clés : Attention  Global processing  Local processing  Autistic traits  Autism  Hierarchical figures  Continuous performance task  Attentional training Index. décimale : PER Périodiques Résumé : Previous work shows that doing a continuous performance task (CPT) shifts attentional biases in neurotypical individuals towards global aspects of hierarchical Navon figures by selectively activating right hemisphere regions associated with global processing. The present study examines whether CPT can induce similar modulations of attention in individuals with high levels of autistic traits who typically show global processing impairments. Participants categorized global or local aspects of Navon figures in pre- and post-CPT blocks. Post-CPT, high trait individuals showed increased global interference during local categorization. This result suggests that CPT may be useful for temporarily enhancing global processing in individuals with high levels of autistic traits and possibly those diagnosed with autism. En ligne : https://doi.org/10.1007/s10803-017-3198-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315 [article] Modulation of Global and Local Processing Biases in Adults with Autistic-like Traits [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - p.2757-2769. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-9 (September 2017) . - p.2757-2769 Mots-clés : Attention  Global processing  Local processing  Autistic traits  Autism  Hierarchical figures  Continuous performance task  Attentional training Index. décimale : PER Périodiques Résumé : Previous work shows that doing a continuous performance task (CPT) shifts attentional biases in neurotypical individuals towards global aspects of hierarchical Navon figures by selectively activating right hemisphere regions associated with global processing. The present study examines whether CPT can induce similar modulations of attention in individuals with high levels of autistic traits who typically show global processing impairments. Participants categorized global or local aspects of Navon figures in pre- and post-CPT blocks. Post-CPT, high trait individuals showed increased global interference during local categorization. This result suggests that CPT may be useful for temporarily enhancing global processing in individuals with high levels of autistic traits and possibly those diagnosed with autism. En ligne : https://doi.org/10.1007/s10803-017-3198-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=315

Reduced Pseudoneglect for Physical Space, but not Mental Representations of Space, for Adults with Autistic Traits / Michael C. W. ENGLISH in Journal of Autism and Developmental Disorders, 47-7 (July 2017)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.1956-1965 Titre : Reduced Pseudoneglect for Physical Space, but not Mental Representations of Space, for Adults with Autistic Traits Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Article en page(s) : p.1956-1965 Langues : Anglais (eng) Mots-clés : Autistic traits  Pseudoneglect  Representational pseudoneglect  Spatial attention  Brain laterality Index. décimale : PER Périodiques Résumé : Neurotypical individuals display a leftward attentional bias, called pseudoneglect, for physical space (e.g. landmark task) and mental representations of space (e.g. mental number line bisection). However, leftward bias is reduced in autistic individuals viewing faces, and neurotypical individuals with autistic traits viewing ‘greyscale’ stimuli, suggestive of atypical lateralization of attention in autism. We investigated whether representational pseudoneglect for individuals with autistic traits is similarly atypically lateralized by comparing biases on a greyscales, landmark, and mental number line task. We found that pseudoneglect was intact only on the representational measure, the mental number line task, suggesting that mechanisms for atypical lateralization of attention in individuals with autistic traits are specific artefacts of processing physically visual stimuli. En ligne : https://doi.org/10.1007/s10803-017-3113-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313 [article] Reduced Pseudoneglect for Physical Space, but not Mental Representations of Space, for Adults with Autistic Traits [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - p.1956-1965. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.1956-1965 Mots-clés : Autistic traits  Pseudoneglect  Representational pseudoneglect  Spatial attention  Brain laterality Index. décimale : PER Périodiques Résumé : Neurotypical individuals display a leftward attentional bias, called pseudoneglect, for physical space (e.g. landmark task) and mental representations of space (e.g. mental number line bisection). However, leftward bias is reduced in autistic individuals viewing faces, and neurotypical individuals with autistic traits viewing ‘greyscale’ stimuli, suggestive of atypical lateralization of attention in autism. We investigated whether representational pseudoneglect for individuals with autistic traits is similarly atypically lateralized by comparing biases on a greyscales, landmark, and mental number line task. We found that pseudoneglect was intact only on the representational measure, the mental number line task, suggesting that mechanisms for atypical lateralization of attention in individuals with autistic traits are specific artefacts of processing physically visual stimuli. En ligne : https://doi.org/10.1007/s10803-017-3113-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313

A review of behavioral evidence for hemispheric asymmetry of visuospatial attention in autism / Michael C. W. ENGLISH in Autism Research, 16-6 (June 2023)  

Public ISBD [article]  inAutism Research > 16-6 (June 2023) . - p.1086-1100 Titre : A review of behavioral evidence for hemispheric asymmetry of visuospatial attention in autism Type de document : Texte imprimé et/ou numérique Auteurs : Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur Article en page(s) : p.1086-1100 Langues : Anglais (eng) Mots-clés : attention  autism  hemispheric asymmetry/lateralization  spatial bias  visual bias Index. décimale : PER Périodiques Résumé : Abstract Most individuals show a small bias towards visual stimuli presented in their left visual field (LVF) that reflects right-hemispheric specialization of visuospatial functions. Moreover, this bias is altered by some neurodevelopmental disorders, suggesting they may be linked to changes in hemispheric asymmetry. To examine whether autism potentially alters hemispheric asymmetry, we conducted a systematic search of scientific databases to review existing literature on the link between autism and alterations in visuospatial bias. This search identified 13 publications that had explored this issue using a wide range of experimental designs and stimuli. Evidence of reduced LVF bias associated with autism was most consistent for studies examining attentional bias or preference measured using tasks such as line bisection. Findings for studies examining attentional performance (e.g., reaction time) were more equivocal. Further investigation is called for, and we make several recommendations for how this avenue of research can be extended. En ligne : https://doi.org/10.1002/aur.2956 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=507 [article] A review of behavioral evidence for hemispheric asymmetry of visuospatial attention in autism [Texte imprimé et/ou numérique] / Michael C. W. ENGLISH, Auteur ; Murray T. MAYBERY, Auteur ; Troy A. W. VISSER, Auteur . - p.1086-1100. Langues : Anglais (eng) in Autism Research > 16-6 (June 2023) . - p.1086-1100 Mots-clés : attention  autism  hemispheric asymmetry/lateralization  spatial bias  visual bias Index. décimale : PER Périodiques Résumé : Abstract Most individuals show a small bias towards visual stimuli presented in their left visual field (LVF) that reflects right-hemispheric specialization of visuospatial functions. Moreover, this bias is altered by some neurodevelopmental disorders, suggesting they may be linked to changes in hemispheric asymmetry. To examine whether autism potentially alters hemispheric asymmetry, we conducted a systematic search of scientific databases to review existing literature on the link between autism and alterations in visuospatial bias. This search identified 13 publications that had explored this issue using a wide range of experimental designs and stimuli. Evidence of reduced LVF bias associated with autism was most consistent for studies examining attentional bias or preference measured using tasks such as line bisection. Findings for studies examining attentional performance (e.g., reaction time) were more equivocal. Further investigation is called for, and we make several recommendations for how this avenue of research can be extended. En ligne : https://doi.org/10.1002/aur.2956 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=507

Threatening faces fail to guide attention for adults with autistic-like traits / Michael C. W. ENGLISH in Autism Research, 10-2 (February 2017)  

Permalink

---

1 (1 - 6 / 6)