Hi Sahil, that functionality was never fully developed in QDEC so we are recommending that people only visualize their uncorrected results in QDEC. For doing the full analysis, you can run QDEC to decide which factors you want to use in the model (and have it generate an FSGD file), but then use the command-line stream to do everything else (ie, mris_preproc, mri_surf2surf, mri_glmfit, mri_glmfit-sim)

On 03/10/2016 11:25 AM, Sahil Bajaj wrote:

Dear all,

I have a very basic question regarding the usage of qdec. I am using qdec to view cortical thickness for a set of patients vs. controls. I am able to create table.dat, design the comparison and display the results. After that, my results are saved as sig.mgh in qdec folder. Now when I try to reopen the same results by loading surface and overlaying with sig.mgh, although it shows me the results but when I click on 'Find Clusters and go to max' it gives me following error: Error generating cluster stats GeneratingClusterStats: white surface was not found and it doesn't display any cluster results in terminal window. If I do everything from very first step, starting from loading table.dat, creating design once again, everything is working fine.

I would really appreciate any help.

Thanks, Sahil

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Sahil Bajaj Post-doctoral Fellow Nantz National Alzheimer's Center, Department of Neurology The Houston Methodist Research Institute (THMRI) Houston, TX, USA. E-mail:sahil.brain@gmail.com mailto:E-mail%3Asahil.phy@gmail.com

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