| Autor: |
Vaughn KA; Department of Psychology, University of Houston., Watlington EM; Department of Psychology, University of Houston., Linares Abrego P; Department of Psychology, University of Houston., Tamber-Rosenau BJ; Department of Psychology, University of Houston., Hernandez AE; Department of Psychology, University of Houston. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of experimental psychology. General [J Exp Psychol Gen] 2021 May; Vol. 150 (5), pp. 996-1007. Date of Electronic Publication: 2020 Oct 26. |
| DOI: |
10.1037/xge0000956 |
| Abstrakt: |
Researchers debate whether domain-general cognitive control supports bilingual language control through brain regions such as the dorsolateral prefrontal cortex (DLPFC). Transcranial direct current stimulation (tDCS) is a method to alter brain activity, which can lead to causal attribution of task performance to regional brain activity. The current study examined whether the DLPFC enables domain-general control for between-language switching and nonlinguistic switching and whether the control enabled by DLPFC differs between bilinguals and monolinguals. tDCS was applied to the DLPFC of bilingual and monolingual young adults before they performed linguistic and nonlinguistic switching measures. For bilinguals, left DLPFC stimulation selectively worsened nonlinguistic switching, but not within-language switching. Left DLPFC stimulation also resulted in higher overall accuracy on bilingual picture-naming. These findings suggest that language control and cognitive control are distinct processes in relation to the left DLPFC. The left DLPFC may aid bilingual language control, but stimulating it does not benefit nonlinguistic control. (PsycInfo Database Record (c) 2021 APA, all rights reserved). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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