Positive correlations with FSIQ across subjects

Region	Brodmann Area	Cluster Size, mm³	MNI Coordinate (Peak)	r Value (mean)
Children:
Correlations with FSIQ in the R.PFN
R AG	39	184	40, −66, 56	0.45
R AG	39	1656^{^b}	40, −66, 56	0.45
R IFG	44	128	52, 12, 28	0.41
R IFG	44	1616^{^b}	52, 12, 28	0.41
L cerebellum^{^a}		536^{^b}	−36, −74, −50	0.37
R AG^{^a}	39	280^{^b}	32, −80, 38	0.27
Adolescents:
Correlations with FSIQ in the L.PFN
L IFG	45	256	−42, 34, 6	0.54
L IFG	45	2416^{^b}	−42, 34, 6	0.54
L FP^{^a}	10	360^{^b}	−22, 60, 2	0.37
Correlations with FSIQ in the R.PFN
R FP^{^a}	11	528^{^b}	30, 56, −4	0.43

Note:—Threshold was P < .05 (threshold-free cluster enhanced, family-wise error–corrected).
↵a Marginally significant correlations (uncorrected P < .005 and cluster size >200 mm³);
↵b represents the cluster size at this threshold. No marginally significant correlation was found in the L.PFN of children.
R indicates right; L, left; IFG, inferior frontal gyrus; AG, angular gyrus; FP, frontal pole; MNI, Montreal Neurological Institute.