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

Figure 3

Neurometabolite levels pre and post anodal tDCS in young and elderly participants. (a) In both populations, no significant interactions between time and stimulation emerged for GABA+:tCr. (b) Young participants showed a reduction of Glx:tCr levels over time irrespective of stimulation condition. This effect was absent in elderly. (c) E/I ratios showed no significant interaction between time and stimulation conditions in either of the two populations.