it splits up the parcels along their eigen-axis until every one is under the user-specified max area (or you can optionally give it a split file). You can also try mris_make_face_parecellation which will create uniformly sized parcels (either in atlas coords if you use sphere.reg or subject coords if you use sphere)

cheers Bruce

On Thu, 27 Jun 2013, Montillo, Albert (GE Global Research) wrote:

Does anyone have further documentation on 'mris_divide_parcellation' ?  Is there a picture of what it does?

It is referred to in the FreeSurfer FAQ

Q. How can I get a high resolution atlas of the cortex in Freesurfer?

A: This can be accomplished using 'mris_divide_parcellation'. You can pass your preferred max area of a parcellation and it will keep subdividing along the primary eigen-axis until no units are above that surface area.