Table 4. Brain signature regions: gray matter.
This table shows the gray-matter regions differentiating the microbiota-based clusters.
Brain regions with positive loading scores are stronger in the Prevotella-high group.
| Brain Region | Hemisphere | Gray Matter Metric |
VIP | Loading | Stability Indices |
|---|---|---|---|---|---|
| Cerebellum | Left | Volume | 16.870 | −0.682 | 1.000 |
| Fronto-Marginal Gyrus/Sulcus | Right | Cortical Thickness | 11.284 | −0.456 | 1.000 |
| Cerebellum | Right | Volume | 7.978 | −0.322 | 0.974 |
| Anterior Occipital Sulcus/Preoccipital Notch | Right | Volume | 6.160 | −0.249 | 0.974 |
| Nucleus Accumbens | Left | Volume | 6.130 | 0.248 | 0.949 |
| Anterior Insula | Left | Cortical Thickness | 4.549 | −0.184 | 0.923 |
| Inferior Temporal Sulcus | Right | Cortical Thickness | 4.469 | −0.181 | 0.923 |
| Hippocampus | Right | Volume | 3.428 | −0.139 | 0.974 |
| Subparietal Sulcus | Left | Mean Curvature | 2.370 | 0.096 | 0.821 |
| Superior Occipital Gyrus | Left | Mean Curvature | 1.686 | 0.068 | 0.667 |