Table 3. Significantly activated regions in the arithmetic task.

Contrast	Brain region	BA	Side	x	y	z	Z-Value	Voxels
Linear – Match	LPMC	6/8	L	−27	5	55	5.5	82
			R	33	5	58	4.5	5
	IFG	44/45	L	−45	11	25	6.8	309
				−51	32	22	5.2	*
	ASG	–	L	−30	26	1	4.6	5
	pre-SMA	6/8	M	−6	20	46	6.0	53
	SMG	40	L	−45	−40	43	6.9	483
	IPS	7/39/40	L	−33	−52	40	6.8	*
	SMG	40	R	48	−31	46	4.5	5
	IPS	7/39/40	R	36	−55	43	6.0	169
	Precuneus	7	M	−6	−70	46	6.1	155
	MTG	21	L	−51	−55	−11	5.2	15
Quad – Simple, masked with Linear – Match	LPMC	6/8	L	−24	5	55	5.4	62
			R	30	5	58	5.6	5
	IFG	44/45	L	−45	5	37	5.9	131
				−45	11	25	5.4	*
	ASG	–	L	−30	23	1	6.1	5
	pre-SMA	6/8	M	−6	20	43	6.4	51
				0	11	55	6.1	*
	SMG	40	L	−48	−37	43	5.4	352
	IPS	7/39/40	L	−33	−49	40	5.8	*
				−27	−70	43	5.5	*
	SMG	40	R	45	−31	43	5.9	5
	IPS	7/39/40	R	39	−52	43	5.4	110
				33	−61	34	4.8	*
	Precuneus	7	M	−12	−61	52	6.3	155
				9	−70	49	6.2	*
Simple – Match	IFG	44/45	L	−45	11	25	4.6	5
	SMG	40	L	−48	−37	46	4.8	12
Linear – Simple	IPS	7/39/40	L	−30	−70	46	4.6	3
			R	39	−55	43	4.5	4
	Precuneus	7	M	−3	−70	43	4.7	28

Stereotactic coordinates (x, y, z) in the Montreal Neurological Institute space (mm) are shown for each activation peak of Z-values (corrected P<0.05). LPMC, lateral premotor cortex; IFG, inferior frontal gyrus; ASG, anterior short insular gyrus; pre-SMA, pre-supplementary motor area; SMG, supramarginal gyrus; IPS, intraparietal sulcus; MTG, middle temporal gyrus; BA, Brodmann's area; L, left hemisphere; R, right hemisphere; M, medial. The region with an asterisk is included within the same cluster shown one row above.