Hi Yoon,
I usually run mri_glmfit directly and then look at the gamma map (that is the average if you ran a one sample group mean analysis, which is what you did, I think).
qdec is just a wrapper around glmfit so the file should be there, I am not sure if qdec can visualize it directly? (am not too familiar with that tool). Maybe someone else knows as this is the same for any analysis run via qdec (I cc'ed Nick who probably knows more).
If qdec cannot do it, you can probably find the gamma.mgh file in the glm/constrast subdirectory and then open it with tksurfer.
Best, Martin
On 08/30/2013 02:16 PM, Chung, Yoonho wrote:
Dear Freesurfers,
Is there a way to visualize average absolute symmetrized percent thickness/volume/area change (not significance map) using qdec or tksurfer or other freesurfer tools? I successfully generated correlation significance map using qdec for the longitudinal data we processed, but I am also interested in looking at just simple average across all subjects. Thanks so much!
Cheers, Yoon _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer