Figure 2: Results for the normalized Pre-Post Power Power, frequency and coherence  changes of 1mA active group  vs sham group  show a) significant increase of the mean power domain in Gamma frequency band under C3, the anodal stimulating electrode. b)  A significant increment of faster activity around the anodal stimulating electrode (C3, F3) while a decreased mean frequency in the  Alpha band near the return electrode (P4) and c) significant increased  mean coherence in the fastest frequency bands (Beta2, Gamma) and SMR under the stimulating electrode (C3), the symmetrical location in the other hemisphere (C4) and the vertex (Cz). The bottom map provides the p-value (Wilkoxon test) of Sham vs. active stimulation.