Table 1.

Peak BOLD signal changes at the group level, to vibrotactile stimulation of left and right digits in 20 healthy participants

							Probabilistic Anatomy, %
			MNI				Central gyri		Brodmann’s area
Hand	Contrast	Digit	x	y	z	Z	Pre	Post	6	4a	4p	3b	1	2
Left	Differential	1	56	−12	46	3.43	20	57	9	41	1	32	82	17
		2	48	−12	54	3.77	42	27	47	38	0	8	43	0
		3	42	−20	54	2.41	32	32	15	41	13	66	19	0
		4	42	−22	62	2.83	28	34	49	38	0	21	55	0
		5	40	−30	64	1.34	5	47	7	35	8	31	76	0
	Single	1	56	−12	48	5.32	19	52	7	44	0	22	76	10
		2	50	−14	56	4.39	17	50	26	18	0	0	37	0
		3	46	−22	60	4.08	9	48	9	10	0	19	96	3
		4	40	−30	66	4.1	5	58	14	38	6	12	65	0
		5	40	−30	64	3.36	5	47	7	35	8	31	76	0
Right	Differential	1	−50	−18	44	3.34	13	51	0	20	15	44	48	60
		2	−48	−14	50	3.55	35	37	33	45	1	31	48	6
		3	−42	−20	62	2.79	38	28	60	28	0	7	32	0
		4	−44	−28	64	1.56	2	63	0	6	0	16	80	8
		5	−46	−28	62	1.92	0	62	0	2	0	11	94	19
	Single	1	−50	−20	44	4.42	6	51	0	9	11	43	50	72
		2	−54	−22	52	4.80	0	69	0	0	0	8	88	30
		3	−44	−20	62	4.17	24	41	48	19	0	5	32	0
		4	−52	−26	56	3.28	0	57	0	0	0	0	86	26
		5	−40	−30	64	3.44	5	49	2	40	0	15	71	8

Pre, precentral gyrus; Post, postcentral gyrus; x, Montreal Neurological Institute (MNI) x-coordinate (in mm); y, MNI y-coordinate (in mm); z, MNI z-coordinate (in mm); Z, Z-score for the blood oxygen level-dependent (BOLD) contrast. Probabilistic anatomy based on the Juelich probabilistic cytoarchitectural atlases viewed in FSL-view. Data for the index finger are highlighted in bold text.