Table 1.

Mean stereotactic coordinates of the center of each square of the grid used to map the motor cortical regions, expressed in MRI and Talairach space coordinate systems, with the corresponding BA

	MRI coordinates (mm)			Talairach coordinates (mm)			BA
Right	x	y	z	x	y	z
S1	63.3	216.3	128.0	15.6	8.5	60.4	Anterior border of BA 4
S2	59.4	217.7	113.7	20.5	−5.7	63.3	BA 4
S3	56.1	218.2	97.3	24.8	−22.2	65.0	Posterior border of BA 4
S4	55.9	218.0	84.8	25.7	−34.9	65.5	BA 5
S5	53.6	211.3	128.7	26.4	9.6	54.5	Posterior border of BA 6
S6	50.0	212.3	115.6	30.9	−3.5	56.7	Anterior border of BA 4
S7	47.1	212.8	99.1	34.8	−20.0	58.5	BA 4
S8	46.2	212.4	86.1	36.5	−33.2	58.8	Border between BA 5 and BA 7
S9	41.9	201.4	130.8	39.4	11.9	42.5	BA 6
S10	38.3	202.1	116.9	43.9	−1.9	44.4	Posterior border of BA 6
S11	35.9	202.7	100.1	47.2	−18.9	46.3	Border between BA 2 and BA 7
S12	35.2	201.9	87.8	48.6	−31.4	46.1	BA 7
Left
S1	92.0	218.2	127.2	−15.7	6.6	62.5	Posterior border of BA 6
S2	96.8	219.0	115.2	−20.6	−5.7	64.2	BA 4
S3	102.9	218.9	98.8	−26.5	−22.6	65.1	Posterior border of BA 4
S4	104.9	218.3	84.2	−28.0	−37.6	65.2	BA 5
S5	100.6	213.3	128.7	−25.2	7.6	56.3	Posterior border of BA 6
S6	105.7	213.3	116.7	−30.2	−4.7	57.1	BA 4
S7	110.8	213.3	100.9	−35.1	−20.9	58.1	Posterior border of BA 4
S8	112.6	213.3	86.5	−36.4	−35.7	58.8	Border between BA 5 and BA 7
S9	113.8	200.6	131.8	−39.3	9.9	40.5	BA 6
S10	124.0	201.3	119.8	−50.1	−2.6	41.9	Posterior border of BA 6
S11	123.1	201.6	103.6	−48.4	−19.0	43.6	Anterior border of BA 7
S12	126.1	200.8	89.1	−51.0	−34.0	43.4	BA 7