Hi,
I am not sure that someone responded you yet.
Once you get results on the qdec using the shift mouse you can draw an ROI out 
of your cluster.
Once done there is a bottom in the guy called “add the selection to the ROI you 
will see the entire ROI highlighted.
Under the “file” command you will find “Map Label to subjects”

Edu

From: 
<freesurfer-boun...@nmr.mgh.harvard.edu<mailto:freesurfer-boun...@nmr.mgh.harvard.edu>>
 on behalf of Katherine Damme 
<katherine.da...@gmail.com<mailto:katherine.da...@gmail.com>>
Reply-To: Freesurfer support list 
<freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>>
Date: Sunday, January 22, 2017 at 4:56 PM
To: Freesurfer support list 
<freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>>
Subject: [Freesurfer] Extracting significant clusters after qdec analyses

Hello Everyone,

Is there a way to extract the significant clusters as masks from significant 
group comparisons using qdec?

All I can seem to find is  mri_glmfit-sim which doesn't quite replicate the 
QDEC FDR 0.05 output and doesn't seem to make anything that I could extract as 
a label, or hand drawing an ROI.

I am working with a longitudinal model of cortical thickness, and would like to 
extract the average thickness of each significant cluster to understand the 
change in thickness.

Thank you.

Kate Damme
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