Re: [Freesurfer] regional surface area differences

2015-02-28 Thread Anderson M. Winkler
Hi Abid, What troubles did you have with Spherical Demons? In any case, though using a different interpolation method, if the registration is the same, mris_preproc gives results very similar as the pycnophylactic method we described in the paper, as long as the data is smoothed. However, before

[Freesurfer] Bad design matrix

2015-02-28 Thread Anders Hougaard
Dear all, I'm comparing cortical thickness of a group of patients to a group of controls. I want to regress out the effects of gender, age, disease severity and disease duration. For the controls, the last two parameters equals zero. When running mri_glmfit, i get ERROR: matrix is