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Is transcranial alternating current stimulation effective for improving working memory? A three-level meta-analysis
Zhang, Siyuan1,2; Cui, Xiaobing1,2; Yu, Shuting1,2; Li, Xuebing1,2
第一作者Zhang, Siyuan
通讯作者邮箱lixb@psych.ac.cn
心理所单位排序1
摘要

Working memory, an essential component of cognitive function, can be improved through specific methods. This meta-analysis evaluates the effectiveness of transcranial alternating current stimulation (tACS), an emerging technique for enhancing working memory, and explores its efficacy, influencing factors, and underlying mechanisms. A PRISMA systematic search was conducted. Hedges's g was used to quantify effect sizes. We constructed a three-level meta-analytic model to account for all effect sizes and performed subgroup analyses to assess moderating factors. Recognizing the distinct neural underpinnings of various working memory processes, we separately assessed the effects on n-back tasks and traditional working memory tasks. A total of 39 studies with 405 effect sizes were included (170 from n-back tasks and 235 from other tasks). The overall analysis indicated a net benefit of g = 0.060 of tACS on working memory. Separate analyses showed that tACS had a small positive effect on n-back tasks (g = 0.102), but almost no effect on traditional working memory tasks (g = 0.045). Further analyses revealed mainly: A moderately positive effect of theta tACS (without anti-phase stimulation) on n-back tasks (g = 0.207); and a small effect of offline stimulation on working memory maintenance (g = 0.127). Overall, tACS has minimal impact on working memory improvement, but it shows potential under certain conditions. Specifically, both online and offline theta tACS can improve n-back task performance, while only offline stimulation enhances working memory maintenance. More research is needed to understand the mechanisms behind these effects to make tACS an effective method.

关键词Transcranial alternating current stimulation (tACS) Working memory (WM) Meta-analysis N-back
2024-10-22
DOI10.3758/s13423-024-02595-0
发表期刊PSYCHONOMIC BULLETIN & REVIEW
ISSN1069-9384
页码16
期刊论文类型实证研究
URL查看原文
收录类别SSCI
资助项目Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences[E2CX3815CX]
出版者SPRINGER
WOS关键词FRONTOPARIETAL THETA TACS ; HIGH GAMMA ; BRAIN OSCILLATIONS ; MOTOR SYSTEM ; INTELLIGENCE ; ATTENTION ; NETWORK ; CORTEX ; SYNCHRONIZATION ; EXCITABILITY
WOS研究方向Psychology
WOS类目Psychology, Mathematical ; Psychology, Experimental
WOS记录号WOS:001338051300003
WOS分区Q2
资助机构Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences
引用统计
文献类型期刊论文
条目标识符https://ir.psych.ac.cn/handle/311026/47649
专题中国科学院心理健康重点实验室
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
第一作者单位中国科学院心理健康重点实验室
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Zhang, Siyuan,Cui, Xiaobing,Yu, Shuting,et al. Is transcranial alternating current stimulation effective for improving working memory? A three-level meta-analysis[J]. PSYCHONOMIC BULLETIN & REVIEW,2024:16.
APA Zhang, Siyuan,Cui, Xiaobing,Yu, Shuting,&Li, Xuebing.(2024).Is transcranial alternating current stimulation effective for improving working memory? A three-level meta-analysis.PSYCHONOMIC BULLETIN & REVIEW,16.
MLA Zhang, Siyuan,et al."Is transcranial alternating current stimulation effective for improving working memory? A three-level meta-analysis".PSYCHONOMIC BULLETIN & REVIEW (2024):16.
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