Effect of Cross Frequency tACS on Cognitive Control

Status Completed

Clinical Trial Summary

Investigation of frequency specific transcranial alternating current stimulation on cognitive control signals in frontal cortex

Clinical Trial Description

Previous evidence suggests that there are specific frequency bands associated with different aspects of cognitive control. In specific delta (2-4Hz) and beta (15-30Hz) are associated with increased levels of abstraction for learned rules; and theta (5-8Hz) and gamma (30-50Hz) has been associated with increased set-size or number of learned rules. Here we aim to find causal evidence in support of these previous correlational findings by applying cross-frequency transcranial alternating current stimulation (tACS) in the specific frequency bands previously shown to be task-relevant. In a crossover design, we stimulate subjects with either delta-beta or theta-gamma tACS during performance of a hierarchical cognitive control task that manipulates the level of abstraction and set-size of rules that must be learned in order to make the correct button press. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03800030
Study type	Interventional
Source	University of North Carolina, Chapel Hill
Contact
Status	Completed
Phase	N/A
Start date	October 7, 2018
Completion date	July 25, 2019

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