Table 4. Group comparisons of Laterality Indices of cortical thickness in the anatomical regions in language-processing pathway.
| Brain region | BA | Thickness laterality (Mean ± SD) | Statistical value | ||||
|---|---|---|---|---|---|---|---|
| S | H | N | F | p | p for Post-hoc t tests | ||
| inferior orbital frontal gyri | 45 | 0.05±0.04 | 0.01±0.03 | 0.00±0.03 | 11.55 | < 0.001 | S<H (<0.001); S<N (<0.001) |
| middle frontal gyri | 46 | 0.01±0.02 | 0.01±0.02 | 0.01±0.02 | 0.238 | 0.789 | |
| Inferior opercular frontal gyri | 44 | 0.01±0.03 | 0.02±0.03 | 0.01±0.04 | 0.232 | 0.794 | |
| inferior parietal gyri | 40 | 0.10±0.04 | 0.02±0.03 | 0.01±0.04 | 56.33 | <0.001 | S>H (<0.001); S>N (<0.001) |
| angular gyri | 39 | 0.02±0.03 | 0.01±0.03 | 0.01±0.03 | 1.737 | 0.182 | |
| superior temporal gyri | 22 | 0.02±0.02 | 0.01±0.02 | 0.00±0.02 | 2.546 | 0.084 | |
| occipital cortex | 17-19 | 0.01±0.02 | 0.00±0.02 | 0.01±0.02 | 17.08 | <0.001 | S>N(<0.001); H>N(<0.001) |
BA=Brodmann's Area; S=schizophrenia patients; H=high-risk people; N=normal controls