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Dear FreeSurfers!
I would like to confirm something before I proceed with my analyses. I think I am just confused again.
I am doing resting state analysis using fsfast. I am trying to use a label defined in the fsaverage space as a seed using the fcseed-config & fcseed-sess commands. Now these commands say that the label should be in fuctional space, which I gather is the space of the f.nii.
So in order to move the label into functional space I say:
mri_label2vol --subject fsaverage --label lh.mylabel.in-fsaverage.label --o lh.mylabel.individualized.in-functional.mgz --proj frac 0 1 0.01 --hemi lh --temp ${projectdir}/${sessionj}/rest/001/f.nii --fill-ribbon --reg ${projectdir}/${session}/rest/register.dof6.lta
To my surprise, the voxel size here corresponds to the anatomical (orig.mgz) but not the functional space (f.nii). To test this further I did:
mri_label2vol --subject fsaverage --label lh.mylabel.in-fsaverage.label --o lh.mylabel.individualized.in-functional.mgz --proj frac 0 1 0.01 --hemi lh --temp $SUBJECTS_DIR/$/${sessionj}/mri/orig.mgz --fill-ribbon --reg ${projectdir}/${session}/rest/register.dof6.lta
And I get exactly the same ROI in the volume.
So just to confirm, is this what I want for the fcseed -commands?
Thank you so much again!
Lauri Tuominen