Table 3.
Intergroup analysis of rs–fMRI brain scans (left caudate nucleus as the seed region).
| Interim Assessment (Week 2) | End-of-Treatment Assessment (Week 4) | ||||
|---|---|---|---|---|---|
| OCN Regions | Cluster Size | Peak z Value | OCN Regions | Cluster Size | Peak z Value |
| Combination group vs. control group | |||||
| Right medial frontal gyrus | 23 | 5.6 | Left inferior frontal gyrus | 21 | 4.2 |
| Standard care group vs. control group | |||||
| Right superior temporal gyrus | 22 | 6.1 | - | - | - |
Two-sample t test. GRF correction (voxel-level p < 0.010, cluster-level p < 0.050). rs–fMRI = resting-state functional magnetic resonance imaging. OCN = olfactory cortical network. Combination = oral vitamin A in combination with aerosolised diffuser olfactory training (OT). Control= clinical observation. Standard care = OT alone.