Table 3.

Mean Talairach coordinates of callosal activation foci evoked in control subjects by different kind of stimulation.

Stimulation	Talairach coordinates
	x	y	z
Sweet anterior (n = 4)	3	21	12
Sweet posterior (n = 3)	1	−38	14
Salty (n = 4)	0	15	19
Bitter anterior (n = 2)	−4	10	25
Bitter posterior (n = 2)	−9	−34	10
Hand motor L&R (n = 3)	0	0	26
Hand motor L or R (n = 5)	0	−11	23
Hand anterior (n = 8)*	−3	−4	23
Hand central (n = 9)*	−1	−27	18
Face (n = 4)	0	−33	14
Tongue anterior (n = 4)	3	16	18
Tongue posterior (n = 2)	−5	−30	16
Forearm (n = 3)	0	−26	22
Arm (n = 3)	1	−31	17
Shoulder (n = 3)	−3	−25	17
Trunk (n = 4)	0	−29	16
Thigh (n = 5)	−2	−27	20
Leg (n = 4)	−1	−32	14
Foot anterior (n = 2)**	1	−3	25
Foot posterior (n = 4)**	−2	−34	16
Peripheral visual field (n = 5)	2	−37	12
Central visual field (n = 9)	1	−33	14
Auditory binaural (n = 1)	−5	−36	17

*5 subjects show activation both in the anterior and central focus.

**1 subject shows activation both in the anterior and central focus.