Abnormal Brain Activity in Social Reward Learning in Children with Autism Spectrum Disorder: An fMRI Study
Yonsei Medical Journal
;
: 705-711, 2015.
Article
Dans Anglais
| WPRIM
| ID: wpr-77295
ABSTRACT
PURPOSE:
We aimed to determine whether Autism Spectrum Disorder (ASD) would show neural abnormality of the social reward system using functional MRI (fMRI). MATERIALS ANDMETHODS:
27 ASDs and 12 typically developing controls (TDCs) participated in this study. The social reward task was developed, and all participants performed the task during fMRI scanning.RESULTS:
ASDs and TDCs with a social reward learning effect were selected on the basis of behavior data. We found significant differences in brain activation between the ASDs and TDCs showing a social reward learning effect. Compared with the TDCs, the ASDs showed reduced activity in the right dorsolateral prefrontal cortex, right orbitofrontal cortex, right parietal lobe, and occipital lobe; however, they showed increased activity in the right parahippocampal gyrus and superior temporal gyrus.CONCLUSION:
These findings suggest that there might be neural abnormality of the social reward learning system of ASDs. Although this study has several potential limitations, it presents novel findings in the different neural mechanisms of social reward learning in children with ASD and a possible useful biomarker of high-functioning ASDs.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Échelles d'évaluation en psychiatrie
/
Récompense
/
Comportement social
/
Encéphale
/
Cartographie cérébrale
/
Imagerie par résonance magnétique
/
Études cas-témoins
/
Troubles généralisés du développement de l'enfant
/
République de Corée
/
Neuroimagerie fonctionnelle
Type d'étude:
Étude observationnelle
Limites du sujet:
Enfant
/
Femelle
/
Humains
/
Mâle
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Yonsei Medical Journal
Année:
2015
Type:
Article
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