you can use the wm.mgz or filled.mgz volumes for this, or use mris_fill to create the interior of the white surface and then take out the aseg voxels that are not white
cheers, Bruce
On Mon, 28 Dec 2009, Oya, Hiroyuki wrote:
Hello All,
I'd like to create mask of white matter. Would it be possible to use white matter surface to do this?
Tx.
Hhiroyuki