Table III.
Maximum depth (in mm) for the major sulci within each hemisphere and paired t‐test measures for differences in lateralization
| Sulci | Maximum depth (left) | Maximum depth (right) | t/P |
|---|---|---|---|
| Central sulcus | 29.8 (2.4) | 30.1 (2.4) | n.s. |
| Lateral sulcus | 34.1 (2.1) | 33.5 (1.9) | 2.5/0.02 |
| Superior frontal | 20.1 (1.6) | 19.2 (2.2) | 2.1/0.05 |
| Superior temporal | 22.6 (2.2) | 24.8 (2.2) | −7.5/<0.0001 |
| Middle temporal | 14.2 (1.9) | 15.5 (2.1) | −2.6/0.02 |
| Intraparietal | 26.0 (1.7) | 26.0 (2.1) | n.s. |
| Transverse occipital | 17.2 (1.9) | 16.4 (2.3) | n.s. |
| Calcarine fissure | 20.2 (3.2) | 20.8 (3.5) | n.s. |
| Superior parietal | 13.3 (1.7) | 14.3 (1.3) | −2.9/0.008 |
| Parieto‐occipital fissure | 18.8 (2.6) | 20.5 (2.6) | −2.9/0.007 |
| Supramarginal | 21.9 (2.2) | 21.1 (3.6) | n.s. |
| Orbitofrontal | 9.6 (1.3) | 10.8 (1.0) | −4.7/<0.0001 |
| Ant. ascending ramus | 29.7 (2.8) | 27.3 (2.2) | 4.8/<0.0001 |
| Ant. horizontal ramus | 13.3 (1.7) | 16.2 (3.3) | 18.5/<0.0001 |