Definitions of ROIs drawn manually to delineate WM tracts
| Tract | Inclusion ROI 1 | Inclusion ROI 2 | Exclusion ROI |
|---|---|---|---|
| UF | Entire temporal lobe identified in coronal plane at level where frontal and temporal lobe are no longer connected | All projections into frontal lobe | Fibers which project into anterior limb of external capsule and posteriorly |
| IFOF | Occipital lobe selected in coronal plane identified halfway between posterior edge of cingulum and posterior of the brain | Entire hemisphere in coronal plane at level of the genu of CC identified in mid-sagittal slice | Fibers crossing medially through anterior commissure |
| ILF | Entire hemisphere selected in coronal plane at posterior edge of cingulum identified at mid-sagittal slice | Entire temporal lobe identified in the coronal plane at level where frontal and temporal lobe are no longer connected | Fibers that track medially into fornix and CC |
| SLF | Identified in coronal plane at lowest axial level in which fornix can be identified as a single structure | Projections passing through coronal plane at level of splenium of CC identified in mid-sagittal slice | Fiber that project into external capsule |
UF, uncinate fasciculus; IFOF, inferior fronto-occipital fasciculus; ILF, inferior longitudinal fasciculus; SLF, superior longitudinal fasciculus; CC, corpus callosum.