Saccade minus vergence data sets / positive paired t-test and vergence minus saccade data sets / negative paired t-test statistics showing differentiation between FEF and midbrain in comparing fixation versus random saccade and vergence tasks.

Peak activation per subject of the fixation versus random vergence oculomotor task in Talairach-Tournoux coordinates with the level of significance denoted as a z-score. For the x axis: positive is right (R) and negative is left (L); for the y axis: negative is posterior (P) and positive is anterior (A); and for the z axis: positive is superior (S) and negative is inferior (I).