No Effect of Anodal tDCS on Verbal Episodic Memory Performance and Neurotransmitter Levels in Young and Elderly Participants

Figure 4

Differential benefits of anodal tDCS. (a) Moderation effect of E/I ratio prior to stimulation on the relationship between stimulation and remembered words in delayed recall 1 for three centerings of E/I ratio (−SD, mean, and +SD). Conditional effects of performance in delayed recall 1. (b) Johnson-Neyman confidence bands indicate ranges of E/I ratios in which the latter has a significant predictive value.

(a)

(b)