Hi Tommaso,

isn't that what the ribbon.mgz is? It's only for cortical gray matter though. You could easily load the aseg.mgz in matlab and add the other gray matter structures to the ribbon.mgz I guess.

cheers, Bruce

On Tue, 7 Oct 2008, Tommaso De Marco wrote:

Hi all, sorry for my ignorance in anatomy, but I'm an engineer, not a physician. I would know what is the relationship in freesurfer between the gray matter and the cortical ribbon. I load in a matlab environment the ribbon.mgz file, and I see that this surrounds the white matter defined by the filled.mgz file; so I 'm thinking to use the ribbon file to find the gray matter voxels. Is there a way to build a file like the ribbon.mgz or the filled.mgz also for the gray matter, in which gray-matter points are highlighted like for the white matter points?

Regards _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer