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The Distinct Roles of the Dorsolateral Prefrontal Cortex and Dorsal Anterior Cingulate Cortex in Cognitive Control:
Xiyun Chen1, Ginger Qinghong Zeng2, Ru Ma1
1Department of Radiology, the First Affiliated Hospital of USTC, State Key Laboratory of Eye Health, School of Life Science, Division of Life Science and Medicine, University of Science & Technology of China, Hefei, China.
Temporal interference stimulation shows distinct effects on cognitive control regions. Dorsal anterior cingulate cortex stimulation benefits all, while dorsolateral prefrontal cortex stimulation aids only those with lower working memory capacity.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Brain Stimulation
Background:
- Correlational studies suggest distinct roles for dlPFC and dACC in cognitive control.
- Causal evidence, particularly for dACC, is limited due to transcranial stimulation method constraints.
- Novel temporal interference (TI) stimulation offers improved focality and depth for targeting deep brain regions.
Purpose of the Study:
- To provide causal evidence for the roles of dlPFC and dACC in cognitive control.
- To investigate the differential effects of TI stimulation on dlPFC and dACC.
- To explore the interaction between brain stimulation, working memory capacity (WMC), and cognitive control enhancement.
Main Methods:
- Utilized temporal interference (TI) stimulation targeting dlPFC, dACC, and sham conditions.
- Assessed cognitive control via the conflict effect (CE) in a Stroop task.
- Compared pre- and post-stimulation CE across individuals with varying WMC levels.
Main Results:
- dACC stimulation significantly enhanced cognitive control irrespective of WMC.
- dlPFC stimulation improved cognitive control exclusively in individuals with low WMC.
- Differential effects observed suggest distinct functional roles for dlPFC and dACC in cognitive control.
Conclusions:
- The findings support distinct roles for dlPFC and dACC in cognitive control, modulated by WMC.
- TI stimulation demonstrates potential as a tool for enhancing cognitive control.
- This study provides novel causal evidence for the involvement of dACC and dlPFC in cognitive control mechanisms.
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