After using fmriprep on our ~130 participants’ data, we found an odd issue with the functional scans of very few (4) of them. For some reason these participants’ functional scans were normalized to MNI, but not aligned to the correct MNI coordinates. So the outcome images are of normalized brains in an offset position.
See for example the attached images of the final MNI space preproc images:
(MNI brain mask overlaid in yellow).
The report html files look OK.
Any of you had similar issues?
Any Idea why this happened, and how to solve this issue?