Hi Stephan,
I guess you could draw the ROI in one subject at the appropriate tal coords, use mri_label2label to map it across subject using the tal xform, then sample it onto the surfaces of each subject.
cheers Bruce
On Thu, 23 Jul 2009, Stephen Towler wrote:
(Looks as if the text of my original email didn't make it to the post. Here it is again:)
We want to extract a spherical ROI of cortical thickness values centered at the same Talairach coordinate for each brain in a study. Any suggestions? In the 2007 archives there is an instructive thread about declaring spherical ROIs on a volume, but I'm not clear about how we would place the initial point at the same Talairach coordinate in every participant.
Thanks, Stephen
--
Stephen Towler Graduate Student, Neuropsychology Dept. Clinical and Health Psychology
stowler@phhp.ufl.edu calendar: http://cli.gs/9nvvDL 352-273-8715 lab (Shands G078) 352-273-6015 lab (HPNP) 352-682-5231 mobile 352-273-6156 fax
Price Lab PO Box 100165 101 S. Newell Drive University of Florida Gainesville, FL 32610
On Jul 22, 2009, at 9:54 AM, Stephen Towler wrote:
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