Table 2.

Brain regions that adults and children show greater similarity across addition and subtraction problems.

Region	BA	# of Voxels	Peak Z-Score	Peak MNI Coordinates (mm)
				X	Y	Z
Adults
R MFG/SFG	9	1038	5.99	50	20	44
R SMG/IPS	39/40	970	4.60	42	−64	38
L/R SFG	8	471	4.41	−10	34	52
L Precentral Gyrus/IFG	44/6/48	1074	4.34	−40	−6	54
R Anterior Temporal Cortex	38	259	4.23	46	18	−18
R Cerebellum		106	4.22	44	−62	−30
L IPS	40/7	477	4.09	−42	−54	44
L Anterior Temporal Cortex	48	362	4.04	−26	14	2
L Cingulate Gyrus	24	161	4.02	−4	28	16
R VTOC	37	379	3.70	54	−54	−12
L Thalamus		175	3.67	−14	−12	18
L Insula	48	110	3.66	−40	−16	6
L Occipital Gyri	17	159	3.65	−10	−66	6
R Thalamus		139	3.57	2	−18	−8
L PHG	30	129	3.33	−12	−26	−10
Children
None

Note: Each cluster was determined using the voxel-wise height threshold of p < .01, multiple comparison correction at p < .05 using a Monte Carlo determined cluster extent of 100 voxels after gray matter masking. BA, Brodmann area. L, left. R, right. MFG, middle frontal gyrus. SFG, superior frontal gyrus. IPS, intraparietal sulcus. SMG, supramarginal gyrus. IFG, inferior frontal gyrus. VTOC, ventral temporal-occipital cortex. PHG, parahippocampal gyrus.