Table 8.
Comparisons of the uncorrected, GLM- and SBM-corrected MCIC data in (a) scanning and (b) SZ effects evaluated with ICA or VBM, respectively.
| Uncorrected | GLM-corrected | SBM-corrected | |
|---|---|---|---|
| a. Scanning effect (unsmoothed data) | |||
| VBM (number of voxels passing FDR) | |||
| Scanner | 8526 | 0 | 0 |
| Slice Thickness | 3740 | 0 | 0 |
| TR/TE | 19491 | 0 | 0 |
| Number of Averages | 8099 | 0 | 0 |
| Magnetic Field Strength | 19487 | 0 | 0 |
| Receiving Coil | 3739 | 0 | 0 |
| Pixel Spacing | 363 | 0 | 0 |
| ICA (Proportion of variance explained) | |||
| Scanner | 61.99% | 0.90% | 3.45% |
| Slice Thickness | 27.43% | 3.06% | 2.86% |
| TR/TE | 61.39% | 0.86% | 1.88% |
| Number of Averages | 29.47% | 0.64% | 3.33% |
| Magnetic Field Strength | 57.87% | 0.42% | 1.68% |
| Receiving Coil | 8.28% | 0.14% | 2.36% |
| Pixel Spacing | 19.02% | 3.05% | 3.28% |
| b. SZ effect (smoothed data) | |||
| VBM (number of voxels passing FDR) | 64,632 | 64,632 | 31,858 |
| ICA (Proportion of explained variance) | 11.63% (IC18) | 12.34% (IC20) | 16.18% (IC2) |
| 8.84% (IC5*) | 10.11% (IC5*) | ||
| 5.63% (IC7*) | 7.74% (IC7*) | ||