Prefrontal theta-gamma transcranial alternating current stimulation improves non-declarative visuomotor learning in older adults.

In addition, a nearly significant and positive three-way interaction of (group [Active tACS] × session [3]) × MoCA (beta = 3.26, 95% CI [− 0.01, 6.53], t(811) = 1.95, p = 0.051; Std. beta = 0.11, 95% CI [− 4.65e−04, 0.23]) indicated higher offline visuomotor learning 3 months after treatment in participants with lower MoCA from the active tACS group compared to those from the sham tACS group (Fig. 4 b).

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