Dear Freesurfers, I've analyzed a run of functional data in FEAT and then used reg-feat2anat to register the FEAT results to the Freesurfer anatomicals. It turns out the original FLIRT registration was bad. When I looked at the reg-feat2anat results, images were flipped 90 degrees. I made edits manually in reg-feat2anat to fix this.

How do I feed this corrected registration back into FSL so it can be used instead of the original FLIRT registration in later FEAT analyses?

Thanks. Michelle