Summary

BIDS allows to specify SliceEncodingDirection. How about adding a parameter to afni.TShift to use this information and SliceTiming from BIDS sidecar files directly.

This comes via fmriprep. @effigies suggested to add this here.

BIDS allows to declare SliceEncodingDirection to specify the direction of SliceTiming. What do you think about adding a SliceEncodingDirection input ({k, k-}) to afni.TShift. If this is k-, reverse the slice timing list before running the correction.

Does it make sense to also add i, j, i-, j-? Or does it make sense to always assume that slices have been acquired along the third axis?

What do you think?