Table 2.

Group differences in cortical surface area

	HC		CSBD
Brain region	Mean	SD	Mean	SD	F (1, 39)	p	Cohens d
Lh lateral orbito frontal	2,861	276	2780	291	0.846	0.363	0.29
Lh medial orbito frontal	2,098	262	2,034	195	0.834	0.367	0.28
Lh caudal anterior cingulate	666	141	677	111	0.069	0.795	−0.08
Lh rostral anterior cingulate	917	144	876	166	0.688	0.412	0.26
Lh posterior cingulate	1,148	119	1,260	187	5.086	0.030*	−0.71
Lh insula	2,501	181	2,486	247	0.052	0.822	0.07
Lh superior frontal	7,805	719	7,748	665	0.07	0.793	0.08
Rh lateral orbito frontal	2,969	336	2,891	325	0.583	0.450	0.24
Rh medial orbito frontal	2,106	171	2,092	170	0.079	0.780	0.09
Rh caudal anterior cingulate	764	148	664	111	6.166	0.017*	0.76
Rh rostral anterior cingulate	655	111	609	92	2.082	0.157	0.45
Rh posterior cingulate	1,302	181	1,157	117	9.422	0.004**	0.95
Rh insula	2,422	218	2,474	284	0.429	0.516	−0.21
Rh superior frontal	7,583	674	7,480	739	0.215	0.645	0.15

Lh indicates left hemisphere, rh indicates right hemisphere. *p < 0.05 ** after multiple comparisons (p < 0.011). Surface area measures are given in mm². Results were mapped into brain space shown in Fig. 1.