Figure 4.

TMS-EPs are associated with across-subject variability in response slowing. A, The difference in RTs between trials after antisaccade and trials after prosaccade is plotted against the difference in TMS-EPs between trials after antisaccade and trials after prosaccade at electrode TP8 (marked with white circle in B) for 15 subjects. B, Scalp topography of correlation coefficient, r, between differential RTs and differential TMS-EPs across subjects. The correlation coefficient was calculated for each electrode position and linearly interpolated across electrode positions.