a statistical trendP = 0.1
For the amplitude of the N2 ERP component the 3 × 2 repeated measurement ANOVAs with the factors tDCS (sham, anodal, cathodal) and hemifield (left, right) revealed a significant main effect of the factor tDCS at electrodes P3 [ F (1.9, 22.2) = 4.64, P < 0.05], and Pz [ F (1.9, 21.4) = 5.29, P < 0.05], and a statistical trend at electrode P4 [ F (1.5, 16.9) = 2.66, P = 0.1].