Thanks, Bruce and Doug. That's what I needed to know.
the mris_glm --help output was nice and thorough.
+glenn
You can also use mri_surf2surf to convert to analyze, use other tools (such as FSL) to do your group analysis, and then use mri_surf2surf to convert the result back to something that can be displayed by tksurfer (eg, a .w file).
doug
On Tue, 30 Nov 2004, Bruce Fischl wrote:
Hi Glenn,
part of the output of mris_make_surfaces (in addition to the ?h.white and ?h.pial surfaces) is a measure of the cortical thickness, contained in the file ?h.thickness. You can do group analysis of these files in two ways. For a simple comparison of means or a t-test, you can use mris_twoclass. For a more sophisticated GLM analysis, you can use mris_glm.
cheers, Bruce