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Hi FreeSurfer Experts,

I am trying to correct for multiple comparisons by running a permutation for a non-orthogonal design. Based on reading through the blog, I came up with the follow script:

mri_glmfit-sim --glmdir rh.volume.AgeSex.10.glmdir --sim perm-resid 1000 3.0 --sim-sign abs --cwp 0.05 --2spaces

I am getting the following error message:

ERROR: Flag abs unrecognized.

And when I tried to put the "abs" after "1000 3.0," I got the error message saying that I needed to specify the --sim-sign.

Could you please let me know how I need to edit my script? I have already run mris_preproc and mri_glmfit. Thanks!

---

Jessica Hua, M.A.

Cognitive and Emotional Control Lab

Doctoral Candidate Clinical Psychology 

University of Missouri

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