Modular preprocessing pipelines can reintroduce artifacts into fMRI data
Martin A. Lindquist, Stephan Geuter, Tor Dessart Wager, Brian S. Caffo
This paper shows that modular fMRI preprocessing pipelines can reintroduce artifacts by sequentially projecting data into non-orthogonal subspaces, and suggests remedies like combining steps into a single filter or orthogonalizing them.