TDCS over PPC or DLPFC does not improve visual working memory capacity.

ABSTRACT: Non-invasive brain stimulation has been highlighted as a possible intervention to induce cognitive benefits, including on visual working memory (VWM). However, findings are inconsistent, possibly due to methodological issues. A recent high-profile study by Wang et al.¹ reported that anodal transcranial direct current stimulation (tDCS) over posterior parietal cortex (PPC), but not over dorsolateral prefrontal cortex (DLPFC), selectively improved VWM capacity but not precision, especially at a high VWM load. Thus, in the current pre-registered conceptual replication study, we accounted for the key potential methodological issues in the original study and tested an adequate number of participants required to demonstrate the previously reported effects (n = 48 compared to n = 20).

SUBMITTER: Jiang S 

PROVIDER: S-EPMC11332112 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature