Dear Doug,

I need some help regarding my FA and non-FA group analysis study. I am not using tracula. I used the dt_recon and I have done the registration for my FA data on the cvs space using the mri_cvs_register.  I used the GLM group analysis method after I concatenate FA from individuals into one file and used mri_glmfit-sim with the option grf as you recommended me some time ago:

mri_glmfit-sim \    --glmdir Group_Analysis.glmdir \    --grf 2 neg \    --cwpvalthresh .025 \    --overwrite    to cache the significant clusters after multiple comparisons so I have the uncorrected and corrected significant map but I don't know how I can see if  my FA is increasing or decreasing in controls  group versus patients group.

I will appreciate any help/suggestion.

Thank you.  Antonella

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