[Freesurfer] vertex correspondance

Hi again,

So many questions!!

Is there some sort of correspondence between vertices on the inner (wm) and outer (pial) surfaces? Ie., for every vertex on the inner surface, is there a point on the outer surface, and if so, does Freesurfer retain this information in any of the files?

Also, I have some binary masks that I have manually traced using another program that I would like to apply to the surfaces to get regional measures of thickness. The mask images are in analyze format. Is there any way that I can do this?

Thanks as always,

Alex

Alexander Fornito

M.psych (Clin. Neuro.)/PhD candidate

Melbourne Neuropsychiatry Centre and Department of Psychology

The University of Melbourne

alexander.fornito@wh.org.au