Table 2:
Test performance of all models evaluated, displaying median R2 and median correlation of average hold-out performances (i.e. average across 5 outer folds) across 100 permutations.
| Ensemble type | Model name | Median performance | |
|---|---|---|---|
| Correlation | R 2 | ||
| None | M1 CST-LL | 0.395 | 0.132 |
| Ipsi. SMATT-LL | 0.441 | 0.175 | |
| L/R SMATT-LL | 0.445 | 0.180 | |
| LBM | 0.452 | 0.200 | |
| sLNM-LL | 0.428 | 0.167 | |
| ChaCo (fs86) | 0.458 | 0.204 | |
| ChaCo (shen268) | 0.458 | 0.200 | |
| ChaCo (fs86) (feat. select.) | 0.457 | 0.202 | |
| ChaCo (shen268) (feat. select.) | 0.468 | 0.212 | |
| + Demog. | M1 CST-LL + demog. | 0.424 | 0.173 |
| Ipsi. SMATT-LL + demog. | 0.457 | 0.199 | |
| L/R SMATT-LL + demog. | 0.462 | 0.203 | |
| LBM + demog. | 0.482 | 0.207 | |
| sLNM-LL + demog. | 0.452 | 0.191 | |
| ChaCo (fs86) + demog | 0.471 | 0.203 | |
| ChaCo (shen268) + demog | 0.468 | 0.204 | |
| ChaCo (fs86) (feat. select.) + demog | 0.471 | 0.205 | |
| ChaCo (shen268) (feat. select.) + demog | 0.481 | 0.215 | |
| ChaCo | M1 CST-LL + ChaCo (fs86subj) | 0.461 | 0.210 |
| Ipsi. SMATT-LL + ChaCo (fs86subj) | 0.478 | 0.226 | |
| Ipsi. SMATT-LL + ChaCo (shen268) | 0.481 | 0.228 | |
| L/R SMATT-LL + ChaCo (fs86subj) | 0.481 | 0.227 | |
| L/R SMATT-LL + ChaCo (shen268) | 0.481 | 0.228 | |
| LBM + ChaCo (fs86subj) | 0.487 | 0.234 | |
| LBM + ChaCo (shen268) | 0.491 | 0.240 | |
| sLNM-LL + ChaCo (fs86subj) | 0.468 | 0.214 | |
| sLNM-LL + ChaCo (shen268) | 0.472 | 0.217 | |
| M1 CST-LL + ChaCo (fs86subj) (feat. select.) | 0.458 | 0.206 | |
| M1 CST-LL + ChaCo (shen268) (feat. select.) | 0.469 | 0.217 | |
| Ipsi. SMATT-LL + ChaCo (fs86subj) (feat. select.) | 0.476 | 0.223 | |
| Ipsi. SMATT-LL + ChaCo (shen268) (feat. select.) | 0.485 | 0.233 | |
| L/R SMATT-LL + ChaCo (fs86subj) (feat. select.) | 0.475 | 0.222 | |
| L/R SMATT-LL + ChaCo (shen268) (feat. select.) | 0.486 | 0.232 | |
| LBM + ChaCo (fs86subj) (feat. select.) | 0.487 | 0.235 | |
| LBM + ChaCo (shen268) (feat. select.) | 0.495 | 0.243 | |
| sLNM-LL + ChaCo (fs86subj) (feat. select.) | 0.462 | 0.208 | |
| sLNM-LL + ChaCo (shen268) (feat. select.) | 0.474 | 0.222 | |
| ChaCo + Lesion load + Demog. | M1 CST-LL + ChaCo (fs86subj) + demog. | 0.476 | 0.214 |
| M1 CST-LL + ChaCo (shen268) + demog. | 0.477 | 0.216 | |
| Ipsi. SMATT-LL + ChaCo (fs86subj) + demog. | 0.492 | 0.230 | |
| Ipsi. SMATT-LL + ChaCo (shen268) + demog. | 0.495 | 0.232 | |
| L/R SMATT-LL + ChaCo (fs86subj) + demog. | 0.494 | 0.231 | |
| L/R SMATT-LL + ChaCo (shen268) + demog. | 0.494 | 0.232 | |
| LBM + ChaCo (fs86subj) + demog. | 0.506 | 0.234 | |
| LBM + ChaCo (shen268) + demog. | 0.509 | 0.237 | |
| sLNM-LL + ChaCo (fs86subj) + demog. | 0.484 | 0.222 | |
| sLNM-LL + ChaCo (shen268) + demog. | 0.487 | 0.224 | |
| M1 CST-LL + ChaCo (fs86subj) (feat. select.) + demog. | 0.472 | 0.212 | |
| M1 CST-LL + ChaCo (shen268) (feat. select.) + demog. | 0.482 | 0.222 | |
| Ipsi. SMATT-LL + ChaCo (fs86subj) (feat. select.) + demog. | 0.490 | 0.228 | |
| Ipsi. SMATT-LL + ChaCo (shen268) (feat. select.) + demog. | 0.498 | 0.237 | |
| L/R SMATT-LL + ChaCo (fs86subj) (feat. select.) + demog. | 0.490 | 0.229 | |
| L/R SMATT-LL + ChaCo (shen268) (feat. select.) + demog. | 0.499 | 0.237 | |
| LBM + ChaCo (fs86subj) (feat. select.) + demog. | 0.505 | 0.234 | |
| LBM + ChaCo (shen268) (feat. select.) + demog. | 0.513 | 0.241 | |
| sLNM-LL + ChaCo (fs86subj) (feat. select.) + demog. | 0.479 | 0.218 | |
| sLNM-LL + ChaCo (shen268) (feat. select.) + demog. | 0.492 | 0.230 | |
Lighter blue shades represent better performance, and models are listed from theory-based to data-driven. Bemog. = demographics, Ipsi. = Ipsilesional, SMATT LL = sensorimotor tract template lesion load, L/R SMATT LL = left and right sensorimotor tract template lesion load, M1 CST LL = M1 corticospinal tract lesion load, ChaCo = Change in Connectivity, fs86 = FreeSurfer 86-region atlas, feat. select. = feature selection