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Dear Freesurfer Community,
I have a question regarding the formatting of the FSGD file while doing an analysis with Xhemi. First the --y file was created as previously explained in another discussion ( https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg63965.html). That is, mris_preproc with --xhemi and no --fsgd flag.
If I understood correctly, that would create a mgh file with the following order: sub01lh, sub01rh, sub02lh, sub02rh... Then the FSGD file while running mri_glmfit would be: GroupDescriptorFile 1 Title xxx Class sub Variables var1 Input sub01lh sub var1_lh_sub01 Input sub01rh sub var1_rh_sub01 Input sub02lh sub var1_lh_sub02 Input sub02rh sub var1_rh_sub02
Would this be correct? If so, what would be the best case for specifying a variable like age? Just repeating the value 2 times?
As always, thanks in advance
Kind Regards
José