Table 4.
Least-square regression analysis of the relationship between ocular and orbital volumes vs. frontal lobe gyri volumes generated using (a) Brain Parser 56 ROI, after accounting for age and sex, and (b) FreeSurfer 5.3.0. Total visual cortical gyri results from the above analysis are shown for comparison
| Ocular volume | Orbital volume | |||||
|---|---|---|---|---|---|---|
| t | P | Adj. R2 for model | t | P | Adj. R2 for model | |
| (a) | ||||||
| Middle frontal gyrus | 2.04 | 0.04 | 0.35 | 4.29 | 0.00 | 0.41 |
| Superior frontal gyrus | 2.05 | 0.04 | 0.34 | 3.64 | 0.00 | 0.38 |
| Inferior frontal gyrus | 2.21 | 0.03 | 0.33 | 3.34 | 0.00 | 0.36 |
| Middle orbitofrontal gyrus | 1.64 | 0.11 | 0.39 | 3.09 | 0.00 | 0.43 |
| Gyrus rectus | 2.16 | 0.03 | 0.24 | 3.11 | 0.00 | 0.27 |
| Total frontal gyri | 2.46 | 0.02 | 0.40 | 4.28 | 0.00 | 0.45 |
| Total visual cortical gyri | 1.59 | 0.12 | 0.32 | 4.42 | 0.00 | 0.37 |
| (b) | ||||||
| Middle frontal gyrus | 2.38 | 0.02 | 0.44 | 3.10 | 0.00 | 0.46 |
| Superior frontal gyrus | 1.52 | 0.13 | 0.54 | 2.01 | 0.05 | 0.54 |
| Inferior frontal gyrus | 0.57 | 0.52 | 0.27 | 1.29 | 0.20 | 0.31 |
| Middle orbitofrontal gyrus | 1.12 | 0.27 | 0.47 | 1.24 | 0.22 | 0.47 |
| Gyrus rectus | 2.76 | 0.01 | 0.35 | 2.50 | 0.01 | 0.34 |
| Total frontal gyri | 2.17 | 0.03 | 0.57 | 2.80 | 0.01 | 0.59 |
| Total visual cortical gyri | 1.60 | 0.11 | 0.45 | 2.57 | 0.01 | 0.43 |