Hi Jess,
If your surfaces are excluding white matter, you can put a control point in the white matter. You do not want to put a control point in grey matter, or a partial volumed voxel. It's not really a case of inside or outside the pial surface, as long as you pick a white matter voxel to put the control point on.
Jenni
On Thu, 19 Apr 2007, Turner, Jessica wrote:
Hi there-looking through the archives for pial surface questions I didn't see an answer to this: I've done autorecon1 and autorecon2 on this subject and I was checking the brain mask, wm, etc. There's a tip of temporal lobe lying outside the pial surface (red line), see attached, where the red cross is in both pictures. What are we supposed to do in this case? I can't put control points outside the red line, as I understand it?
Thanks,
Jess
Jessica Turner, Ph.D.
Project Manager, FBIRN (www.nbirn.net)
Department of Psychiatry and Human Behavior
University of California, Irvine
Phone: (949) 824-3331
Fax: (949) 824-3324