Individual Subject Level Preprocessing

[jennyrieck]

Preprocessing steps to do for each subject

[jennyrieck]

• [x] linear (and quadratic) detrend across each run separately
• [x] drop TRs based on individual design
• [ ] reorder TRs based on design (to some common order across subjects)?
• [ ] SNR to remove low variance voxels? - needs manual verification - oro.nifti slice visualizer.
• [x] centering (rows/columns?) (just through expo.scale and rowNorms)
• [x] scaling (rows/columns) (just through expo.scale and rowNorms)
• [x] global signal regression
• [x] polynomial detrend (i.e., time; regressed for all degrees up to deg)
• [x] svd normalization?
• [x] svd low rank approximation