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Anodal stimulation over M1 might actually have effects on alpha power

Horvath and colleagues published recently two large meta-analysis of effects of tDCS on cognitive measures and neurophysiological measures [1,2]. Essentially, they claim that tDCS has no reliable effects besides MEP modulation. And the effect size of this modulation appears to be decreasing since the first studies on tDCS fifteen years ago. This sounds like very… Read more »