Table 3.

Between-group results indicating significant brain activation during the math tasks

Task	P-value (corrected)	No. of voxels	Z-score	Peak location (Talairach coordinates)	Activation description
Two-operand
Con-TS	NS
TS-Con	<0.0001	1534	3.77	−6, 0, 44	Anterior cingulate
	<0.0001	1225	3.86	−42, −10, 35	Left precentral gyrus extending into middle frontal, postcentral and supramarginal gyri
	0.014	678	3.22	−46, −4, −7	Left superior temporal gyrus extending into middle temporal and inferior frontal gyri
Three-operand
Con-TS	<0.0001	4759	3.90	−44, −39, 26	Left supramarginal gyrus extending into angular gyrus, intraparietal sulcus, superior parietal lobule, fusiform and posterior middle temporal gyrus
	<0.0001	2905	4.25	−6, 35, 6	Anterior cingulate extending into medial bilateral superior frontal gyrus
	0.001	914	3.44	44, 35, 33	Right middle frontal gyrus extending into inferior frontal gyrus
	0.026	575	3.31	−42, 10, 36	Left inferior frontal gyrus Extending into middle frontal gyrus
	0.032	553	3.98	6, −73, 18	Cuneus
TS-Con	NS

Thresholds: height (Z > 1.67; P < 0.05) and extent (P < 0.05). NS, not significant.