Resting-state fMRI preprocessing steps
| Preprocessing Steps | Recommended |
|---|---|
| Motion correction | Yes, for SBC and ICA |
| STC | Optional for TR ≤2 Recommended for TR >2 for SBC and ICA |
| Elimination of systematic odd-even slice-intensity differences | Optional |
| Despiking | Yes, for SBC only |
| Volume censoring/scrubbing | Yes, for SBC and ICA |
| Linear detrending | Optional |
| Nuisance regression: CSF/white matter | Yes, for SBC only |
| Nuisance regression: head motion | Yes, for SBC and ICA |
| Nuisance regression: global signal | Optional |
| Temporal filtering | Yes, bandpass filtering for SBC and ICA |
| Spatial smoothing | Yes, with smoothing kernel at twice the voxel size for SBC and ICA |