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背外侧前额叶皮质在双语语言切换和非语言任务切换中的作用：来自多体素模式分析的证据。

The Role of the Dorsolateral Prefrontal Cortex in Bilingual Language Switching and Non-Linguistic Task-Switching: Evidence from Multi-Voxel Pattern Analysis.

作者信息

Vaughn Kelly A, Tamber-Rosenau Benjamin J, Hernandez Arturo E

机构信息

University of Houston.

University of Texas Health Science Center at Houston.

出版信息

Biling (Camb Engl). 2024 Aug;27(4):690-699. doi: 10.1017/s1366728923000834. Epub 2023 Dec 6.

DOI:10.1017/s1366728923000834
PMID:39583202
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11580812/
Abstract

Previous research suggests that bilingual language control requires domain-general cognitive control. Recent research suggests that exploration of individual differences is key for understanding the relationship between bilingual language control and cognitive control. The current study used multi-voxel pattern analysis (MVPA) to examine within-subject patterns of fMRI activity in the dorsolateral prefrontal cortex (DLPFC) during bilingual language switching and non-linguistic task-switching. We hypothesized that bilinguals would have identifiable, within-subject patterns of DLPFC activity for both types of switching and that bilinguals and monolinguals would differ in patterns of DLPFC activity for task-switching. We were unable to identify patterns of DLPFC activity associated with bilingual language switching. Task-switching was related to patterns of left DLPFC activity for both bilinguals and monolinguals, and there were identifiable patterns of right DLPFC activity for the bilinguals only. These findings suggest that the DLPFC is not the key brain structure connecting bilingual language and task-switching.

摘要

先前的研究表明，双语语言控制需要通用领域的认知控制。最近的研究表明，探索个体差异是理解双语语言控制与认知控制之间关系的关键。本研究使用多体素模式分析（MVPA）来检查双语语言切换和非语言任务切换期间背外侧前额叶皮层（DLPFC）内的功能磁共振成像（fMRI）活动的个体内模式。我们假设，双语者在两种类型的切换中都有可识别的、个体内的DLPFC活动模式，并且双语者和单语者在任务切换的DLPFC活动模式上会有所不同。我们无法识别与双语语言切换相关的DLPFC活动模式。任务切换与双语者和单语者左DLPFC活动模式均相关，且仅双语者存在可识别的右DLPFC活动模式。这些发现表明，DLPFC不是连接双语语言和任务切换的关键脑结构。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/9ed28c536908/nihms-1944213-f0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/24d4bef4509b/nihms-1944213-f0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/9611c4734398/nihms-1944213-f0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/3c1cac3e77b9/nihms-1944213-f0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/9ed28c536908/nihms-1944213-f0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/24d4bef4509b/nihms-1944213-f0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/9611c4734398/nihms-1944213-f0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/3c1cac3e77b9/nihms-1944213-f0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9d56/11580812/9ed28c536908/nihms-1944213-f0004.jpg

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Predictions about the Cognitive Consequences of Language Switching on Executive Functioning Inspired by the Adaptive Control Hypothesis Fail More Often than Not.受适应性控制假说启发而做出的关于语言切换对执行功能的认知后果的预测往往并不成功。
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Neurosci Biobehav Rev. 2021 Jun;125:264-295. doi: 10.1016/j.neubiorev.2021.02.029. Epub 2021 Feb 22.
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