Table 3.
Structural connectivity results
| Tract | Segmentation method | Tract volume | Fractional anisotropy | Mean diffusivity | Radial diffusivity | Axial diffusivity |
|---|---|---|---|---|---|---|
| Cingulum bundle, left | TractSeg | β = 0.50, P = 0.53 | β = − 6.3e−03, P = 0.02* | β = 6.0e−06, P = 0.17 | β = 8.0 e−06, P = 0.09 | β = 1.9 e−06, P = 0.65 |
| Cingulum bundle, right | TractSeg | β = 0.59, P = 0.30 | β = − 4.2 e−04, P = 0.87 | β = − 4.7 e−07, P = 0.91 | β = − 5.7 e−07, P = 0.90 | β = − 2.6 e−07, P = 0.95 |
| Peri-genual cingulum, left | Xtract | β = 0.09, P = 0.01* | β = − 0.02, P = 0.002* | β = 1.1 e−05, P = 0.10 | β = 2.2 e−05, P = 0.003* | β = − 1.1 e−05, P = 0.39 |
| Peri-genual cingulum, right | Xtract | β = − 0.05, P = 0.28 | β = 2.2 e−03, P = 0.72 | β = − 6.4 e−06, P = 0.33 | β = − 6.4 e−06, P = 0.33 | β = − 3.4 e−07, P = 0.97 |
| Cingulum bundle dorsal, left | Xtract | β = 0.29, P = 0.07 | β = − 9.3 e−03, P = 0.03* | β = 5.7 e−06, P = 0.24 | β = 6.7 e−06, P = 0.09 | β = − 2.2 e−06, P = 0.72 |
| Cingulum bundle dorsal, right | Xtract | β = 0.03, P = 0.82 | β = − 4.5 e−03, P = 0.28 | β = − 3.6 e−07, P = 0.94 | β = 1.9 e−06, P = 0.73 | β = − 4.9 e−06, P = 0.43 |
| Cingulum bundle temporal, left | Xtract | β = 0.11, P = 0.33 | β = − 2.9 e−03, P = 0.48 | β = 1.6 e−05, P = 0.04* | β = 1.6 e−05, P = 0.04* | β = 1.6 e−05, P = 0.10 |
| Cingulum bundle temporal, right | Xtract | β = 0.02, P = 0.83 | β = − 3.5 e−03, P = 0.47 | β = 3.0 e−07, P = 0.97 | β = 2.2 e−06, P = 0.77 | β = 1.6 e−05, P = 0.10 |
| Superior longitudinal fasciculus I, left | TractSeg | β = − 0.81, P = 0.21 | β = 5.5 e−06, P = 0.25 | β = 7.1 e−06, P = 0.18 | β = 7.1 e−06, P = 0.18 | β = 2.3 e−06, P = 0.67 |
| Superior longitudinal fasciculus I, right | TractSeg | β = 0.29, P = 0.71 | β = 1.6 e−04, P = 0.96 | β = − 3.7 e−06, P = 0.41 | β = − 3.4 e−06, P = 0.49 | β = − 3.5 e−06, P = 0.71 |
| Superior longitudinal fasciculus I, left | Xtract | β = 0.12, P = 0.61 | β = − 5.9 e−03, P = 0.23 | β = 4.7 e−06, P = 0.44 | β = 6.6 e−06, P = 0.35 | β = 8.6 e−06, P = 0.90 |
| Superior longitudinal fasciculus I, right | Xtract | β = 0.22, P = 0.34 | β = − 2.1 e−03, P = 0.63 | β = − 4.8 e−06, P = 0.39 | β = − 2.2 e−06, P = 0.73 | β = − 1.0 e−05, P = 0.18 |
General Linear Models for differences in tract structural connectivity matrices according to ipsilateral paracingulate sulcal presence. All models are corrected for age, sex, and handedness. Model of tract volume are additionally corrected for total intracranial volume. * Denotes significance at P < 0.05