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