Table 3 Stimulation targets and effects on obsessions and compulsions, per patient

Pt	Location negative electrode contacts	Improvement Y-BOCS ON vs OFF (%)	Improvement Y-BOCS LFU vs preop (%)	Current status
1	Bilateral in ALIC, adjacent to nucleus accumbens	14	5	CAPS
19	Bilateral in BST	24	8	OFF
17	Bilateral in BST	—	10	CAPS
2	Bilateral in ALIC	31	15	ON
14	Bilateral in ALIC	14	19	ON
4	Bilateral in ALIC	37	21	CAPS
5	Bilateral in ALIC	26	26	OFF
15	Bilateral in BST	34	32	ON
12	Bilateral in prereticular zone, adjacent to BST	33	35	ON
13	Bilateral in BST	47	38	ON
20	Bilateral in BST	52	39	ON
18	Left in BST and right in IC, adjacent to BST	−89	43	ON
3	Bilateral in ALIC, adjacent to nucleus accumbens	—	47	ON
8	Bilateral in BST	—	50	ON
6	*Left in ALIC, adjacent to BST and right in ALIC and BST*	67	57	ON
11	Left in IC, adjacent to BST and right in BST	72	58	ON
16	Bilateral in BST	—	58	ON
24	Left in BST and right in IC, adjacent to BST	—	59	OFF
21	*Left in BST and right in ALIC*	63	67	ON
9	Bilateral in BST	50	71	ON
23	Bilateral in BST	—	71	ON
22	*Bilateral in ALIC, adjacent to BST*	—	76	ON
7	Unilateral (right) in BST	71	77	ON
10	Bilateral in IC, adjacent to BST	91	95	ON

Abbreviations: ALIC, anterior limb of the internal capsule; BST, bed nucleus of the stria terminalis; CAPS, capsulotomy; IC, internal capsule; LFU, last follow-up; OFF, stimulation off; ON, stimulation on; preop, preoperative measurement; Pt, patient; Y-BOCS, Yale–Brown Obsessive-Compulsive Scale.
Bold entries indicate ALIC stimulation, italic entries indicate BST stimulation, bold italic entries indicate comparable stimulation of both targets. Data are sorted by % improvement at LFU. Current status refers to the situation in May 2014.

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