Hi Antonella
talairach.lta and .xfm are linear transforms to a Talairach coordinate system. The .m3z is a nonlinear morph and will give you much higher anatomical resolution.
cheers Bruce
On Thu, 11 Aug 2011, Antonella Kis wrote:
Dear Freesurfers,
I am ready to run the make_average_subject and I need to specify -xform for the talairach transform: talairach.lta , talairach.m3z or talairach.xfm. What is the difference between this and what should I use for the make_average_subject in order to prepare my data for the GLM analysis?
Thank you very much for your help. Antonella