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Hi everyone,

I am using Fressurfer 7.4.1 for a longitudinal analysis with 4 timepoints. I followed this instruction below to see cortical thickness changes, and I found 3 significant clusters. https://secure-web.cisco.com/1zkw2d7WuvQHYpAKmrGwmY4HTHyJc1TV0m82jbLxopbfDfK... -- Second Stage: Option QDEC This one from the website: long_mris_slopes --qdec long.testretest.qdec \ --meas thickness \ --hemi lh \ --sd $SUBJECTS_DIR \ --do-pc1 --do-label \ --generic-time \ --fwhm 15 \ --qcache fsaverage \ --stack-pc1 lh.testretest.thickness-pc1.stack.mgh \ --isec-labels lh.testretest.fsaverage.cortex.label

mri_glmfit --osgm \ --glmdir lh.testretest.thickness-pc1.fwhm15 \ --y lh.testretest.thickness-pc1.stack.fwhm15.mgh \ --label lh.testretest.fsaverage.cortex.label \ --surf fsaverage lh

I also ran mri_glmfit-sim. (mri_glmfit-sim --glmdir lh.testretest.thickness.fwhm15 --cache 4 neg --cwp 0.05 --2spaces)

I want to extract the percent change values/numbers (pc1, *pc1 = rate / thick1*) from the 3 significant clusters we found so I could visualize those values for every participant. I was not able to find how to do this step. Is there a way to do this?

Thank you for the help!

Best regards, Victor