Table 3. Group comparisons of the quantities of regional cortical thickness in the anatomical regions in language-processing pathway.

Brain region	BA	Cortical thickness (mm) (Mean ± SD)			Statistical values
		S	H	N	F	p	p for Post-hoc t tests
L_ inferior orbital frontal gyrus	45	2.44±0.27	3.00±0.19	2.84±0.21	35.11	<0 .001	S<H (<0.001); S<N (<0.001); H>N(=0.011)
R_inferior orbital frontal gyrus		2.67±0.28	2.95±0.26	2.87±0.28	7.846	0.001	S<H (<0.001); S<N (=0.009); H>N(=0.049)
L_middle frontal gyrus	46	2.61±0.19	2.82±0.17	2.71±0.23	5.569	0.005	S<H(=0.001); H>N(=0.036)
R_middle frontal gyrus		2.65±0.21	2.95±0.21	2.75±0.24	5.845	0.004	S<H(=0.001); H>N(=0.021)
L_inferior opercular frontal gyrus	44	2.56±0.23	2.89±0.21	2.80±0.26	10.154	< 0.001	S<H(<0.001); S<N(<0.001)
R_ inferior opercular frontal gyrus		2.64±0.26	2.94±0.23	2.86±0.28	8.487	<0.001	S<H(<0.001); S<N(=0.003)
L_inferior parietal gyrus	40	3.24±0.33	2.79±0.16	2.72±0.26	29.87	<0 .001	S>H(<0.001); S>N(<0.001)
R_ inferior parietal gyrus		2.65±0.22	2.89±0.23	2.74±0.21	7.242	0.001	S<H(<0.001); H>N(=0.006)
L_angular gyrus	39	2.57±0.25	2.80±0.19	2.72±0.22	5.582	0.005	S<H(=0.002); S<N(<0.014)
R_angular gyrus		2.68±0.25	3.03±0.23	2.75±0.21	4.135	0.019	S<H(<0.006); H>N(=0.038)
L_superior temporal gyrus	22	2.60±0.20	2.83±0.14	2.76±0.20	8.709	< 0.001	S<H(<0.001); S<N(=0.002)
R_ superior temporal gyrus		2.36±0.15	2.72±0.13	2.45±0.13	6.193	0.003	S<H (=0.001); S<N (=0.03); H>N(=0.047)
L_occipital cortex	17-19	2.08±0.14	2.08±0.09	2.05±0.11	.941	0.394
R_occipital cortex		2.03±0.13	2.05±0.08	2.09±0.10	4.792	0.011	S<H(=0.003); S<N(=0.028)

BA=Brodmann's Area; S=schizophrenia patients; H=high-risk people; N=normal controls