Table 4. Eye movement-related neurons detected in the scanning eye movement task and/or visual guided saccade tasks.

	STN (46 neurons)			GP (2 neurons)			SNr (5 neurons)
	SEM	VGS	Both	SEM	VGS	Both	SEM	VGS	Both
EM-related neurons †	10	10	2	0	1	0	1	2	0
POS-related	4	9	0	0	0	0	0	2	0
VELOC-related	9	4	1	0	0	0	1	0	0
ACCEL-related	8	11	3	0	1	0	2	0	0
POS & VELOC-related	3	4	0	0	0	0	0	0	0
POS & ACCEL-related	2	4	0	0	0	0	0	0	0
VELOC & ACCEL-related	4	2	0	0	0	0	1	0	0
POS & VELOC & ACCEL-related	2	2	0	0	0	0	0	0	0

EM-related neurons – the number of eye movement-related neurons associated with at least one kinematic parameter (^†Bonferroni-corrected number of neurons for three kinematic parameters) identified from patients 16-19 which performed both the scanning eye movement task (SEM) and visual guided saccade task (VGS) in the subthalamic nucleus (STN), globus pallidus (GP) and substantia nigra pars reticulata (SNr). Neurons functionally associated with one or more kinematic parameters (POS – eye position; VELOC – eye velocity; ACCEL – eye acceleration) are reported for each nucleus separately.