Table 5. 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.

Region	Talairach -Tournoux Stereotactic Coordinates			z-score in Saccade Data set	z-score in Vergence Data set	Paired t- test T value
	X (mm)	Y (mm)	Z (mm)
FEF(Activity in Saccade data set)	−36L	−9P	50S	3.4	<1	2.7
	30R	−5P	48S	2.4	<1	2.4
FEF(Activity in Vergence data set)	−32L	6A	49S	<1	2.3	−2.3
	24R	2A	50S	<1	2.5	−2.3
Midbrain(Activity in Vergence Data set)	8R	−20P	−5I	<1	2.6	−4.3

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).