Hi Greg,

load the ?h.thickness files in tksurfer as curvature maps or overlays to get the point-wise map of thickness. Use mris_anatomical_stats for the summary stats. You can use the -l <label file> option to get summary stats for a region instead of a whole hemisphere.

cheers, Bruce

On Thu, 3 Mar 2005, Kirk, Gregory wrote:

HI all, wrt useing freesurfer for obtaining cortical thickness there are the lh.thickness etc. and the theoretical paper in the citations, but I have not found things that would show me how to derive things like, average thickness for an individual, average thickness of a region or thickness at a point for an individual. I need it seems a way to interpret the two thickness files, i.e. mapping the numbers therin to a point on the geometry.

thankx Greg