Fig. 3: Time-frequency decomposition of n = 93 participants.
From: Neurophysiological insights into catecholamine-dependent tDCS modulation of cognitive control
a Alpha band time-frequency (TF) analysis and cluster-based permutation testing (CBPT) results. The TF plots display average power differences (0-1000 ms post-target arrow onset) for the prime effect (compatible MINUS incompatible trials) when flankers were incongruent, as well as for the flanker effect (congruent MINUS incongruent trials) when the prime was incompatible. Topographic plots highlight significant electrodes identified in the CBPTs, marked with red “x“s to indicate negative differences. These plots show average power in the significant timeframe (100 to ~600 ms) separately for both MPH and placebo groups, with conflict effects noted in corresponding titles. b Theta band time-frequency (TF) analysis and cluster-based permutation testing (CBPT) results. The TF plots display average power differences (0–1000 ms post-target arrow onset) for the prime effect (compatible MINUS incompatible trials) when flankers were incongruent, as well as for the flanker effect (congruent MINUS incongruent trials) when the prime was incompatible. Topographic plots highlight significant electrodes identified in the CBPTs, marked with red “x“s to indicate negative differences. These plots show average power in the significant timeframe (250 to ~750 ms) separately for both MPH and placebo groups, with conflict effects noted in corresponding titles.
