Effects of transcranial direct current stimulation on Nicotine Use Disorder: A systematic review and meta-analysis

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ID: 319347
2026
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Ranked #112 of 121 articles by views in nicotine & tobacco research : official journal of the society for research on nicotine and tobacco

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Abstract
Abstract Introduction Transcranial direct current stimulation (tDCS) is a viable non-invasive approach to counter nicotine addiction. This systematic review and meta-analysis aim to investigate the effects of tDCS on smoking behaviours in Nicotine Use Disorder (NUD) and explore neuroimaging findings related to these effects. Methods Systematic review following PRISMA guidelines shortlisted 21 studies. Primary outcome measures were effects of tDCS vs sham on smoking (i) craving, (ii) consumption and (iii)accompanying neuroimaging results. Random effects meta-analysis was conducted on 6 comparisons for smoking craving and 13 comparisons for smoking consumption. Anodal and cathodal stimulations were evaluated as moderator variables via meta-regression. Five studies with neuroimaging data supporting tDCS effects on smoking behaviours were reviewed. GRADE methodology was applied to assess evidence quality. Results Compared to sham, tDCS produced a small reduction in nicotine craving (Hedges’ g = −0.26, 95%CI (−0.51, −0.01)) with moderate certainty, and moderate reduction in consumption (Hedges’ g = −0.48, 95%CI [−0.79, −0.17],) with low certainty; all within the first day post-stimulation. Moderator analyses did not identify specific electrode placements that effectively reduce nicotine craving or intake. Five studies evaluated tDCS effects on smoking behaviours with neuroimaging support namely fMRI, fNIRS and EEG, providing additional insights to neurobiology of nicotine addiction. Conclusion Current evidence indicates that tDCS may be associated with changes in craving and consumption in NUD. Further research is required to establish efficacy, identify key moderators, and integrate neuroimaging to explore tDCS effects in smoking cessation.
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Authors Cindy P S Niap, Na Ooi, Hui En Ang, Kok Leong Soo, Fabian Sunil Dass, Sivakumar Thurairajasingam, Anne Yee
Journal nicotine & tobacco research : official journal of the society for research on nicotine and tobacco
Year 2026
DOI
10.1093/ntr/ntag152
URL
https://doi.org/10.1093/ntr/ntag152
Keywords Keywords not found

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