fMRIprep BOLD reference image same across sessions?

[cpauley]

It’s unclear to me from the fMRIprep documentation whether the BOLD reference image used for motion correction is created within or across sessions. Basically, I have two sessions, each containing multiple runs, and I want to have all runs from both sessions aligned to one single reference image. Is this automatically done with fMRIprep or if not, is this an option?

Thanks!

[oesteban]

Hi, the BOLD reference is created within run, meaning that there is no common reference for all runs in a session nor a common reference across sessions.

It is not automatically done with fMRIPrep and at this point it is not an option. There are two related issues in our repo:

• https://github.com/poldracklab/fmriprep/issues/620
• https://github.com/poldracklab/fmriprep/issues/450