Inferior frontal cortex activity is modulated by reward sensitivity and performance variability
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Otros documentos de la autoría: Fuentes-Claramonte, Paola; Avila, Cesar; Rodríguez Pujadas, Aina; Costumero, Víctor; Ventura Campos, Mercedes; Bustamante, Juan Carlos; Rosell Negre, Patricia; Barrós-Loscertales, Alfonso
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Título
Inferior frontal cortex activity is modulated by reward sensitivity and performance variabilityAutoría
Fecha de publicación
2016-01xmlui.dri2xhtml.METS-1.0.item-edition
PreprintEditor
ElsevierCita bibliográfica
FUENTES-CLARAMONTE, Paola, et al. Inferior frontal cortex activity is modulated by reward sensitivity and performance variability. Biological Psychology, 2016, vol. 114, p. 127-137.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0301051116300011Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
High reward sensitivity has been linked with motivational and cognitive disorders related with prefrontal and striatal brain function during inhibitory control. However, few studies have analyzed the interaction among ... [+]
High reward sensitivity has been linked with motivational and cognitive disorders related with prefrontal and striatal brain function during inhibitory control. However, few studies have analyzed the interaction among reward sensitivity, task performance and neural activity. Participants (N = 57) underwent fMRI while performing a Go/No-go task with Frequent-go (77.5%), Infrequent-go (11.25%) and No-go (11.25%) stimuli. Task-associated activity was found in inhibition-related brain regions, with different activity patterns for right and left inferior frontal gyri (IFG): right IFG responded more strongly to No-go stimuli, while left IFG responded similarly to all infrequent stimuli. Reward sensitivity correlated with omission errors in Go trials and reaction time (RT) variability, and with increased activity in right and left IFG for No-go and Infrequent-go stimuli compared with Frequent-go. Bilateral IFG activity was associated with RT variability, with reward sensitivity mediating this association. These results suggest that reward sensitivity modulates behavior and brain function during executive control. [-]
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Biological Psychology, 2016, vol. 114Derechos de acceso
info:eu-repo/semantics/openAccess
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