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Prefrontal transcranial direct current stimulation (tDCS) enhances behavioral and EEG markers of proactive control

Boudewyn, Megan; Roberts, Brooke M; Mizrak, Eda; Ranganath, Charan; Carter, Cameron S (2018). Prefrontal transcranial direct current stimulation (tDCS) enhances behavioral and EEG markers of proactive control. Cognitive Neuroscience, 10(2):57-65.

Abstract

This study examined the effects of stimulation targeting dorsolateral prefrontal cortex (DLPFC) on behavioral and neural oscillatory markers of proactive cognitive control in healthy adults. We hypothesized that active stimulation targeting the DLPFC would enhance proactive control compared to sham, leading to changes in the pattern of error rates and gamma-band power on the Dot Pattern Expectancy (DPX) task. We recorded EEG while participants completed the DPX, after receiving either 20 minutes of active DLPFC stimulation at 2 mA or sham stimulation in a counterbalanced within-participants design. The results showed significant tDCS-induced changes in the pattern of error rates on the DPX task indicative of enhanced proactive control, as well as predicted increases in gamma power associated with the engagement of proactive control. These results provide support for the role of DLPFC-mediated gamma activity in proactive cognitive control, and further, indicate that proactive control can be enhanced with non-invasive neurostimulation.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
Dewey Decimal Classification:150 Psychology
Scopus Subject Areas:Life Sciences > Cognitive Neuroscience
Language:English
Date:3 December 2018
Deposited On:26 Feb 2019 13:46
Last Modified:30 Aug 2024 03:39
Publisher:Taylor & Francis
ISSN:1758-8936
OA Status:Closed
Publisher DOI:https://doi.org/10.1080/17588928.2018.1551869
PubMed ID:30465636
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