You'll have to load it as an overlay to a surface, eg, freeview -f $FREESURFER_HOME/subjects/fsaverage/surf/lh.inflated:overlay=fmcpr.up.sm5.fsaverage.lh.nii.gz there won't be much to see :)

On 9/8/2021 5:51 AM, Alice Giubergia wrote:

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Dear Freesurfer's experts, I got a beginner questiom 'cause I am new in Freesurfer. I ran preproc-sess on my functional data: preproc-sess -s sessionid -fsd bold -stc up -surface fsaverage lhrh -mni305 -fwhm 5 -per-run

and got fmcpr.up.sm5.fsaverage.lh.nii.gz for data sampled to the left hemisphere of fsaverage. I was trying to visualize these data through freeview -v since I succesfully opened the orginal data f.nii, but got nothing. What's my error? any suggestion?

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