Table 2.
Table of SVM classification performance across the 8 different fractional anisotropy (FA) mapping profiles. Values in parenthesis indicate resulting p value from permutation testing. Given that only a single fold was tested for each of the 25 TF selected maps, a p value could not be calculated.
| MAP | Voxels 2mm cubic | Classification Accuracy (permutation p values) | ||
|---|---|---|---|---|
|
| ||||
| Total | MDD | HC | ||
| Whole Brain FA | ||||
| All FA | 1,083,793 | 70 (0.015) | 80 (0.003) | 60 (0.230) |
| Right Hemisphere FA | 168,929 | 74 (0.005) | 80 (0.004) | 68 (0.060) |
| Right Hemisphere FA -W/O CC | 165,035 | 76 (0.002) | 84 (0.001) | 68 (0.070) |
| Left Hemisphere FA | 164,399 | 68 (0.030) | 72 (0.022) | 64 (0.122) |
| Whole Brain FA Skeleton | ||||
| All FA Skeleton | 111,052 | 70 (0.011) | 84 (0.001) | 56 (0.363) |
| Right Hemisphere FA Skeleton | 75,939 | 68 (0.020) | 72 (0.017) | 64 (0.108) |
| Left Hemisphere FA Skeleton | 75,804 | 68 (0.021) | 76 (0.005) | 60 (0.219) |
| Feature Selected | ||||
| TF Split-Half Selected FA | 1231 (SD 487) | 74 | 68 | 76 |
Table of SVM classification performance across the 8 different fractional anisotropy (FA) mapping profiles. Values in parenthesis indicate resulting p value from permutation testing. Given that only a single fold was tested for each of the 25 TF selected maps, a p value could not be calculated.