Re: [Freesurfer] Estimating the difference in cortical thickness between two groups

Your interpretation of the beta.mgh file is correct. That contrast will compute the difference of the groups. Not sure what you mean by the "slope of the difference". doug jorge luis wrote: Hello all We are comparing the cortical thickness of two groups with the following fsgd file: GroupD

[Freesurfer] Estimating the difference in cortical thickness between two groups

Hello all We are comparing the cortical thickness of two groups with the following fsgd file: GroupDescriptorFile 1 Title Thickness-subj Class contr Class modif Input subj1 contr Input subj2 contr Input subj3 contr Input subj4 contr ... Input subj36 modif Input subj37 modif Input subj38