Table 5.
Surface-based morphometry (SBM) results as a function of Openness scores (n = 507)
| Openness | ||||||||
|---|---|---|---|---|---|---|---|---|
| A. Association between openness and cortical thickness (negative correlations) | ||||||||
| Cortical region | Hemisphere | Max | Size (mm2) | X | Y | Z | CWP | Effect size |
| Rostral middle frontal | L | 2.819 | 3188.14 | −39.7 | 45.8 | 18.3 | 0.0001 | 0.0161 |
| R | 3.034 | 1696.34 | 43 | 31 | 34 | 0.0139 | 0.0157 | |
| Lateral occipital | L | 2.644 | 1561.46 | −11.1 | −95.8 | 15.6 | 0.0210 | 0.0162 |
| Rostral anterior cingulate | L | 2.513 | 1326.42 | −6.8 | 38.3 | 17.9 | 0.0497 | 0.0155 |
| Postcentral | R | 3.707 | 2211.42 | 63.5 | −12.2 | 30.8 | 0.0023 | 0.0174 |
| Inferior parietal | R | 3.328 | 3412.63 | 36.1 | −86.4 | 18.2 | 0.0001 | 0.0162 |
| Superior frontal | R | 2.488 | 1467.56 | 16.2 | 40.3 | 46.3 | 0.0310 | 0.0156 |
| B. Association between openness and surface area (positive correlations) | ||||||||
| Cortical region | Hemisphere | Max | Size (mm2) | X | Y | Z | CWP | Effect size |
| Inferior temporal | L | 3.688 | 6203.92 | −45.1 | −47.7 | −15.1 | 0.0001 | 0.0166 |
| Postcentral | R | 4.023 | 2358.33 | 51.1 | −23.6 | 50.4 | 0.0135 | 0.0181 |
| Lateral occipital | R | 3.447 | 4103.56 | 19.5 | −102.4 | −4.5 | 0.0001 | 0.0171 |
| Inferior parietal | R | 2.861 | 2075.41 | 31.9 | −72.2 | 22 | 0.0319 | 0.0176 |
| C. Association between openness and cortical volume (positive correlations) | ||||||||
| Cortical region | Hemisphere | Max | Size (mm2) | X | Y | Z | CWP | Effect size |
| Inferior temporal | L | 3.356 | 2024.42 | −43.1 | −56.1 | −9.9 | 0.0038 | 0.0171 |
| R | 2.545 | 1701.86 | 45.8 | −60.7 | −11.6 | 0.0137 | 0.0167 | |
| Temporal pole | L | 2.785 | 1790.26 | −24.2 | 6.1 | −30.6 | 0.0086 | 0.0167 |
| D. Association between openness and local gyrification index (positive correlations) | ||||||||
| Cortical region | Hemisphere | Max | Size (mm2) | X | Y | Z | CWP | Effect size |
| Inferior temporal | L | 3.793 | 9654.94 | −53.7 | −64.7 | −3.6 | 0.0001 | 0.0165 |
| Posterior cingulate | L | 2.564 | 1130.65 | −6.2 | −8.3 | 43.3 | 0.0058 | 0.0154 |
| Lateral orbitofrontal | L | 2.275 | 1044.04 | −20.9 | 50.3 | −16.9 | 0.0103 | 0.0148 |
| Cuneus | L | 1.906 | 1133.88 | −13.7 | −76.1 | 21 | 0.0058 | 0.0145 |
| Parahippocampal gyrus | R | 2.594 | 3615.35 | 20.6 | −22.9 | −26.3 | 0.0001 | 0.0159 |
Associations between openness and cortical thickness (A), surface area (B), cortical volume (C) and local gyrification index (D). X, Y, Z: MNI coordinates of the local maxima; L: Left; R right; CWP: cluster-wise P value; DLPFC: Dorsolateral Prefrontal Cortex; MNI: Montreal Neurological Institute.