Dear FS experts,
I came across an error-message that I can't figure out, hopefully you can help me. I want to do a paired T-test (first without regressors) and I am following the steps on the Freesurfer website. Preprocessing and smoothing all went OK and I've just created the second fsgd file;
GroupDescriptorFile 1 Class Main Input subject1pair Main Input subject2pair Main Input subject3pair Main Input subject4pair Main Input subject5pair Main Input subject6pair Main Input subject7pair Main Input subject8pair Main
Because I don't want to include any regressors I put in the flag --osgm (is this right?) and didn't include the contrasts.
This is the error message I receive after putting in the mri_glmfit command:
ERROR: you must use '--surface subject hemi' with surface data
Did I do everything correct or did I forget a step?
Thank you so much in advance,
Bente