[article]
| Titre : |
Neural Correlates of Set-Shifting in Children With Autism |
| Type de document : |
Texte imprimé et/ou numérique |
| Auteurs : |
Benjamin E. YERYS, Auteur ; Ligia ANTEZANA, Auteur ; Rachel WEINBLATT, Auteur ; Kathryn F. JANKOWSKI, Auteur ; John STRANG, Auteur ; Chandan J. VAIDYA, Auteur ; Robert T. SCHULTZ, Auteur ; William D. GAILLARD, Auteur ; Lauren KENWORTHY, Auteur |
| Article en page(s) : |
p.386-397 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
autism cognitive control set-shifting functional magnetic resonance imaging cingulate prefrontal cortex |
| Index. décimale : |
PER Périodiques |
| Résumé : |
Autism spectrum disorder (ASD) is often associated with high levels of inflexible thinking and rigid behavior. The neural correlates of these behaviors have been investigated in adults and older adolescents, but not children. Prior studies utilized set-shifting tasks that engaged multiple levels of shifting, and depended on learning abstract rules and establishing a strong prepotent bias. These additional demands complicate simple interpretations of the results. We used functional magnetic resonance imaging (fMRI) to investigate the neural correlates of set-shifting in 20 children (ages 7–14) with ASD and 19 typically developing, matched, control children. Participants completed a set-shifting task that minimized nonshifting task demands through the use of concrete instructions that provide spatial mapping of stimuli-responses. The shift/stay sets were given an equal number of trials to limit the prepotent bias. Both groups showed an equivalent “switch cost,” responding less accurately and slower to Switch stimuli than Stay stimuli, although the ASD group was less accurate overall. Both groups showed activation in prefrontal, striatal, parietal, and cerebellum regions known to govern effective set-shifts. Compared to controls, children with ASD demonstrated decreased activation of the right middle temporal gyrus across all trials, but increased activation in the mid-dorsal cingulate cortex/superior frontal gyrus, left middle frontal, and right inferior frontal gyri during the Switch vs. Stay contrast. The successful behavioral switching performance of children with ASD comes at the cost of requiring greater engagement of frontal regions, suggesting less efficiency at this lowest level of shifting. Autism Res 2015, 8: 386–397. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. |
| En ligne : |
http://dx.doi.org/10.1002/aur.1454 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=268 |
in Autism Research > 8-4 (August 2015) . - p.386-397
[article] Neural Correlates of Set-Shifting in Children With Autism [Texte imprimé et/ou numérique] / Benjamin E. YERYS, Auteur ; Ligia ANTEZANA, Auteur ; Rachel WEINBLATT, Auteur ; Kathryn F. JANKOWSKI, Auteur ; John STRANG, Auteur ; Chandan J. VAIDYA, Auteur ; Robert T. SCHULTZ, Auteur ; William D. GAILLARD, Auteur ; Lauren KENWORTHY, Auteur . - p.386-397. Langues : Anglais ( eng) in Autism Research > 8-4 (August 2015) . - p.386-397
| Mots-clés : |
autism cognitive control set-shifting functional magnetic resonance imaging cingulate prefrontal cortex |
| Index. décimale : |
PER Périodiques |
| Résumé : |
Autism spectrum disorder (ASD) is often associated with high levels of inflexible thinking and rigid behavior. The neural correlates of these behaviors have been investigated in adults and older adolescents, but not children. Prior studies utilized set-shifting tasks that engaged multiple levels of shifting, and depended on learning abstract rules and establishing a strong prepotent bias. These additional demands complicate simple interpretations of the results. We used functional magnetic resonance imaging (fMRI) to investigate the neural correlates of set-shifting in 20 children (ages 7–14) with ASD and 19 typically developing, matched, control children. Participants completed a set-shifting task that minimized nonshifting task demands through the use of concrete instructions that provide spatial mapping of stimuli-responses. The shift/stay sets were given an equal number of trials to limit the prepotent bias. Both groups showed an equivalent “switch cost,” responding less accurately and slower to Switch stimuli than Stay stimuli, although the ASD group was less accurate overall. Both groups showed activation in prefrontal, striatal, parietal, and cerebellum regions known to govern effective set-shifts. Compared to controls, children with ASD demonstrated decreased activation of the right middle temporal gyrus across all trials, but increased activation in the mid-dorsal cingulate cortex/superior frontal gyrus, left middle frontal, and right inferior frontal gyri during the Switch vs. Stay contrast. The successful behavioral switching performance of children with ASD comes at the cost of requiring greater engagement of frontal regions, suggesting less efficiency at this lowest level of shifting. Autism Res 2015, 8: 386–397. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. |
| En ligne : |
http://dx.doi.org/10.1002/aur.1454 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=268 |
|
Neural Correlates of Set-Shifting in Children With Autism in Autism Research, 8-4 (August 2015)
