Hello group,
I am a new user of Freesurfer and just learning to process data
through the pipeline. Sorry if this is an amateur question. I was just trying
to look at cortical thickness differences between a patient group and a control
group. So, my fsgd file would just list the input files and the corresponding
diagnosis. Now, if I were to design a contrast matrix to look at cortical
thickness differences between the 2 groups, I understand that I would have only
2 regressors . So, my contrast matrix would just be [-1 1]? I tried doing that
and I got a matrix read error for the contrast file. Thanks in advance for your
help.
Regards
Koushik
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