Long-term tDCS effects on neurophysiological measures of cognitive control in tobacco smokers

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Abstract

Introduction
In this study we assessed the effects of transcranial Direct Current Stimulation (tDCS) on inhibitory control and error processing as measures of cognitive control to better understand tDCS modulation of smoking behaviour.
Methods
Smokers were allocated to six sessions of either active tDCS (n = 34) or sham tDCS (n = 35). Immediately before, one day after, and three months after all tDCS sessions, participants performed the Go-NoGo task while we measured behavioural and neurophysiological responses.
Results
One day after the intervention no significant effect was found of active tDCS on behavioural and neurophysiological measures of cognitive control in tobacco smokers. However, a significant improvement in reaction times, and a decrease in No-Go P3 amplitudes for smoking cues was found three months after active tDCS.
Conclusion
Given the direction of the effect, we speculate that tDCS has a long-term modulatory learning effect on selective attention and motor inhibition.
Original languageEnglish
Article number107962
JournalBiological Psychology
Volume156
Early online date23 Sept 2020
DOIs
Publication statusPublished - Oct 2020

Research programs

  • ESSB PSY

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