Table 2.
Summary of VBM results (Controls > Betel quid chewers).
| Brain region | Cluster size | MNI x | MNI y | MNI z | TFCE corrected p | t | |
|---|---|---|---|---|---|---|---|
| L/R | VMPFC | 533 | 18 | 58 | −4 | <0.001 | 5.46 |
| R | DLPFC/IFG/insula | 418 | 56 | 28 | 0 | <0.001 | 4.98 |
| L | OFC | 234 | −20 | 28 | −16 | <0.001 | 5.04 |
| L | DLPFC/IFG/insula | 193 | −42 | 16 | −6 | <0.001 | 4.44 |
L, left; R, right; MNI, Montreal Neurological Institute, TFCE, threshold-free cluster enhancement; VMPFC, ventromedial prefrontal cortex; DLPFC, dorsolateral prefrontal cortex; IFG, inferior frontal gyrus; OFC, orbitofrontal cortex.
The voxel size in VBM analysis is 2 mm × 2 mm × 2 mm.