> Thanks very much for informative answers!
>
Part of my question remains however: How are the white matter and CSF masks
(used in the compCor procedure) obtained? Do you use the posterior
probability maps for WM and CSF (>50%, one voxel erosion) obtained from
NORMALIZED or NON-NORMALIZED (but then likely co-registered to the
functional volumes) subject-specific anatomical images? In other words, do
you first normalize the anatomical image and then segment it, or do you
first segment subject-specific anatomical scans and use these
non-normalized segmentation outputs for creating the WM and CSF masks? Do
you extract the wm and CSF time-series from normalized or from
non-normalized functional volumes?
Best
P�r