Did you supply a registration matrix when you ran mri_surf2vol? Also, try viewing the overlay on the surf2vol template. BTW, it is a lot easier for us to help you if you give us command-lines and terminal output.
doug
Nasim Maleki wrote:
Dear FreeSurfers,
I'm trying to transform and overlay the sig.mgh files on the 3D volumetric data. I use mri_surf2vol to convert sig.mgh and everything works fine up to the point that I try to view the overlay with tkmedit. There is no overlay on top of the main volume although it is successfully loaded and also when I use the 'configure functional overlay' interface in tkmedit I get the following error: Error: Error 18 in FunV-TclOISetSampleType: Invalid Parameter"
Have I missed something?
Thanks for your help in advance. Nasim
P.S. I use FreeSurfer v4.3.0
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