Hi Sara, You may want to try --meas volume in place of --meas thickness when running mris_preproc.
I would also recommend looking at our ROI Analysis<https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/AnatomicalROIV6.0> tutorial and Volumetric Group Analysis<https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/VolumetricGroupAnalysis?highlight=%28thickness%29%7C%28volume%29%7C%28measure%29> tutorial. Please let us know if you are still having trouble. Cheers, Jocelyn ________________________________ From: freesurfer-boun...@nmr.mgh.harvard.edu <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Sara Lyn <saralyn...@gmail.com> Sent: Monday, December 7, 2020 10:43 AM To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu> Subject: [Freesurfer] group analyses External Email - Use Caution Hi FS developers, I ran mris_preproc, surf2 surf and glmfit and cluster analyses (monte carlo) for a surface based thickness group analysis. I am trying to extract volume measures from the same significant thickness ROIs. Is there any way to do this? Thank you! Sara
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