Table 4.
Comparison analysis of gray matter on GM density between the Alex and the HC groups
| GM density value | t-value | p-value | ||
|---|---|---|---|---|
|
| ||||
| Alex group | HC group | |||
| V8/sCB, Bi | 0.718 ± 0.045 | 0.734 ± 0.033 | −1.345 | 0.186 |
| MT+, Bi | 0.2298 ± 0.027 | 0.235 ± 0.029 | −0.602 | 0.551 |
| V4, R | 0.378 ± 0.039 | 0.358 ± 0.047 | 1.449 | 0.155 |
| latOCC/Temp, R | 0.438 ± 0.076 | 0.446 ± 0.048 | −0.429 | 0.670 |
| PCC | 0.651 ± 0.055 | 0.668 ± 0.043 | −1.107 | 0.275 |
| V1 | 0.601 ± 0.044 | 0.721 ± 0.033 | 0.991 | 0.328 |
| dmPFC | 0.529 ± 0.048 | 0.529 ± 0.039 | −0.028 | 0.978 |
| pgACC | 0.546 ± 0.077 | 0.547 ± 0.068 | −0.072 | 0.943 |
| rdACC | 0.560 ± 0.095 | 0.574 ± 0.064 | −0.542 | 0.591 |
| vaIns/frOP/TP, RpOFC, Bi | 0.557 ± 0.078 | 0.571 ± 0.046 | −0.735 | 0.467 |
| aIns, pOFC, Bi, | 0.540 ± 0.051 | 0.528 ± 0.046 | 0.805 | 0.426 |
| vaIns/TC/OFC, Bi | 0.431 ± 0.025 | 0.429 ± 0.035 | 0.238 | 0.813 |
| midIns, Bi dPut, R | 0.426 ± 0.047 | 0.431 ± 0.032 | −0.415 | 0.681 |
| vStr, midIns, HCMP, L | 0.655 ± 0.039 | 0.654 ± 0.042 | 0.103 | 0.919 |
| Amy_L | 0.700 ± 0.027 | 0.706 ± 0.028 | −0.663 | 0.511 |
| Hy | 0.408 ± 0.025 | 0.406 ± 0.028 | 0.299 | 0.767 |
| PAG/Thal | 0.517 ± 0.048 | 0.503 ± 0.043 | 1.015 | 0.316 |
| Amy vStr vGP Thal, Bi | 0.348 ± 0.021 | 0.345 ± 0.027 | 0.499 | 0.621 |
| frOP, R | 0.422 ± 0.087 | 0.439 ± 0.044 | −0.809 | 0.423 |
| IFG, R | 0.409 ± 0.075 | 0.426 ± 0.036 | −0.946 | 0.350 |
| preSMA, IFG, L | 0.183 ± 0.035 | 0.182 ± 0.028 | 0.143 | 0.887 |
Notes: Data are presented as percentage/ratio or mean ± SD; there are some significant differences, p<0.05.
Abbreviations: Alex, alexithymia; aIns, pOFC, anterior insula, posterior orbitofrontal cortex; Amy vStr vGP Thal, Bi, Bilateral amygdala, ventral striatum, ventral globus pallidus, thalamus; Amy_L, left basolateral amygdala; dmPFC, dorsal medial prefrontal cortex; frOP, R, right frontal operculum; GM, gray matter; HC, healthy control; Hy, hypothalamus; IFG, R, right inferior frontal gyrus; latOCC/Temp, R, right lateral occipital cortex/temporal lobe; midIns, Bi dPut, R, Bilateral middle insula, right dorsal putamen; MT+, Bi, bilateral middle temporal complex; PAG/thal, periaqueductal gray/thalamus; pgACC, pregenual anterior cingulate cortex; preSMA, IFG, L, left pre-supplementary motor area, inferior frontal gyrus; rdACC, rostral dorsal anterior cingulate cortex; V4, R, right visual area 4; V8/sCB, Bi, visual area 8/bilateral superior cerebellum; vaIns/ frOP/TP, RpOFC, Bi, ventral anterior insula/frontal operculum/right temporal pole, bilateral posterior orbitofrontal cortex; vaIns/TC/OFC, Bi, bilateral ventral anterior insula/ temporal cortex/orbitofrontal cortex; vStr, midIns, HCMP, L, left ventral striatum, middle insula, hippocampus.