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