Hi all,

     I am trying to compute differences between 2 runs of my same set of subjects (repeatability) using the steps from the paired analysis wiki page. After I finish the mris_preproc and the mri_surf2surf steps, when I do the glmfit, should I be using the osgm option ? Since it is the same subject, I do not need the age variable as mentioned in the 2^nd fsgd file. If I should still be using the 2^nd fsgd file and not osgm, what would my contrast file look like?

Thanks for the help

Koushik