Table 3.

Subthalamic nucleus electrode positioning and stimulation parameters.

Subject	Left side					Right side
	Active contacts	X	Y	Z	V	Active contacts	X	Y	Z	V
1	C+, 2−	13.63	0.36	−2.49	1.3	C+, 0−	−13.99	−2.42	−4.43	1.3
2	C+, 2−	8.52	−4.89	−3.02	1.8	C+, 2−	−11.0	−3,50	−2,00	1.8
3	C+, 2−	9.43	−0.87	−3,58	3,2	C+, 2−	−12.20	−0.84	−4,57	2.2
4	C+, 1−	11.64	−3.51	−6.17	1.4	C+, 0−	−12.50	−4.00	−3.50	1.4
5	C+, 3−	10.50	−0.90	−6.21	1.7	C+, 2−	−11.56	1.57	−5.96	1.7
6	C+, 2−	10.69	−0.37	−1.88	1.3	C+, 2−	−10.60	1.59	−2.52	1.3
7	C+, 2−	11.82	−2.00	−4.25	1.7	C+, 1−	−12.27	−2.50	−4.57	1.7
8	C+, 3−	12.51	−1.23	−3.06	2.2	C+, 0−	−12.39	−1.58	−1.26	1.7
9	C+, 2−	11.81	−0.75	−0.41	2	C+, 3−	−10.32	−0.95	0.38	2

All values are in millimeters and relative to the midpoint between the anterior and posterior commissures. Positive/negative x-value = right/left; positive/negative y-value = anterior/posterior; positive/negative z-value = superior/inferior. V = voltage. The coordinates indicate the position of the center of the 4 contact array.