Table 1.

MNI coordinates, effect size, exact significance, and cluster size of significant relations between IC performance and cortical surface area^{^a}

	Anatomical region	Peak voxel coordinate in MNI 305 space (x, y, z)			Correlation (peak voxel)	Cluster wise p value	Cluster size (mm²)
Whole-brain analysis
“Cold” IC
	L RFC	−35.4	57.1	−6.2	0.431	0.00459	687.43
	L inferior temporal lobe	−63.3	−43.2	−20.2	0.544	0.00978	628.70
	L precentral gyrus^{^b}	−28.6	−22.0	59.0	0.454	0.02247	550.10
	R PCC^{^b}	13.6	−23.9	35.9	0.480	0.00938	614.13
Small-volume correction: sCCN
“Cold” IC
	L RFC^{^b}	−33.1	56.2	−2.1	0.341	0.00020	376.86
	R RFC^{^b}	32.2	53.8	−4.7	0.358	0.00060	209.65
	R IPL^{^b}	44.0	−61.2	45.2	0.390	0.01460	136.17
“Hot” IC
	L SMG^{^b}	−51.5	−49.8	59.0	0.216	0.01720	113.21
Small-volume correction: PFC
“Cold” IC
	L RFC^{^b}	−35.4	57.1	−6.2	0.420	0.00010	687.43
	R RFC^{^b}	38.0	58.8	−7.1	0.387	0.03790	217.05
	R caudal ACC	8.7	40.0	9.7	0.459	0.00120	374.78

↵^aAll effects are controlled for children's chronological age and gender. PCC, Posterior cingulate cortex; SMG, supramarginal gyrus.
↵^bRegions were independent from the other IC domain.