I have not seen anything of that magnitude. I do see a systematic drop
in the thickness with v7 relative to v6, but it is on the order of 1 or
2%. It might be something specific to the pulse sequence that you are
using. Try looking at the surfaces of the subject that has the largest
thickness on version 6 vs 7
External Email - Use Caution
Dear Freesurfer developers,
I have a cohort of subjects that are already run under FS 6. I recently
upgraded Freesurfer from 6.0 to 7.1.1, and now I also have run these subjects
under FS 7.
When comparing the cortical thickness
2.6mm average cortical thickness for young adults, but it does
depend on age.
Matt.
From: on behalf of Xiaojiang Yang
Reply-To: Freesurfer support list
Date: Friday, March 12, 2021 at 10:29 AM
To: Freesurfer support list
Subject: [Freesurfer] Cortical thickness on version 6 vs 7
External Email - Use Caution
Dear Freesurfer developers,
I have a cohort of subjects that are already run under FS 6. I recently
upgraded Freesurfer from 6.0 to 7.1.1, and now I also have run these
subjects under FS 7.
When comparing the cortical thickness results obtained from
