no, we do it on a vertex basis. It's detailed on the wiki

cheers, Bruce

On Tue, 27 May 2008, Feng-Xian Yan wrote:

Hi, I have some questions about cortical thickness. What method does freesurfer calculate the cortical thickness? Can freesurfer provide the cortical thickness value at each voxel in the gray matter?

Thank you in advance. Feng-Xian _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer