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Neuromodulation Special Issue tDCS effect on prosocial behavior: a meta-analytic review

Social cognitive and affective neuroscience, 2022-01, Vol.17 (1), p.26 [Peer Reviewed Journal]

COPYRIGHT 2022 Oxford University Press ;ISSN: 1749-5016 ;EISSN: 1749-5024 ;DOI: 10.1093/scan/nsab067

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  • Title:
    Neuromodulation Special Issue tDCS effect on prosocial behavior: a meta-analytic review
  • Author: Yuan, Bo ; Tolomeo, Serenella ; Yang, Chunliang ; Wang, Ying ; Yu, Rongjun
  • Subjects: Brain research ; Medical research ; Medicine, Experimental
  • Is Part Of: Social cognitive and affective neuroscience, 2022-01, Vol.17 (1), p.26
  • Description: Previous studies have shown that transcranial direct current stimulation (tDCS) could potentially promote prosocial behaviors. However, results from randomized controlled trials are inconsistent. The current meta-analysis aimed to assess the effects of anodal and cathodal tDCS using single-session protocols on prosocial behaviors in healthy young adults and explore potential moderators of these effects. The results showed that compared with sham stimulation, anodal (excitatory) stimulation significantly increased (g = 0.27, 95% CI [0.11, 0.43], Z = 3.30, P = 0.001) and cathodal (inhibitory) stimulation significantly decreased prosocial behaviors (g = -0.19, 95% CI [-0.39, -0.01], Z = -1.95, P = 0.051) using a multilevel meta-analytic model. These effects were not significantly modulated by stimulation parameters (e.g. duration, intensity and site) and types of prosocial behavior. The risk of publication bias for the included effects was minimal, and no selective reporting (e.g. P-hacking) was found in the P-curve analysis. This meta-analysis showed that both anodal and cathodal tDCS have small but significant effects on prosocial behaviors. The current study provides evidence that prosocial behaviors are linked to the activity of the 'social brain'. Future studies are encouraged to further explore whether tDCS could effectively treat social dysfunctions in psychiatry disorders.
  • Publisher: Oxford University Press
  • Language: English
  • Identifier: ISSN: 1749-5016
    EISSN: 1749-5024
    DOI: 10.1093/scan/nsab067
  • Source: Journals@Ovid Open Access Journal Collection Rolling
    DOAJ Directory of Open Access Journals
    Geneva Foundation Free Medical Journals at publisher websites
    PubMed Central
    Open Access: Oxford University Press Open Journals
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