Hi Doug, I would like to run surface based analysis using FA maps. I am not exactly sure that what I am doing is totally right specially step 2 . I used the following commands:
1. I registered the FA maps to T1 using the command: bbregister --s bert --mov dtifit_FA.nii --bold --init-fsl --reg reg.dat 2. I concatenated the subject's FA maps using the command : mris_preproc -target fsaverage -hemi lh -iv .bert1/dtifit_FA.nii reg.dat -iv bert2/dtifit_FA.nii reg.dat .... --projfrac 0.5 --out lh.FA.mgz 3. Then smoothing mri_surf2surf --hemi lh --s fsaverage --fwhm 5 --cortex --sval lh.FA.mgz --tval lh.FA_5mm.mgz 4. Then GLM analysis using mri_glmfit 5. Correction for multiple comparison mri_glmfit-sim Kindly, are these steps correct? I highly appreciate any input on this! Best, Mohamad
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