Fig. 4: Source Coherence.

A Schematic of interconnections analyzed using Beamformer coherence approaches. B Cluster permutation analysis of coherence measures under indicated tDCS conditions for the SMA-Motor, SMA-visual and Motor-Visual connections. Data are mean ± sem. C Scatter plots (with 95% confidence interval) of normalized RT by indicated coherence values across conditions *p < 0.05.