That looks correct. You can also checkout the instructions here:

https://surfer.nmr.mgh.harvard.edu/fswiki/PairedAnalysis

Hi list,

I'm not sure that the files reported below are correct to assess the longitudinal difference between T1 and T2.

Please, could you check it? The result which I have obtained bu running mri_glmfit is too strange.

Thanks

Best regards

Stefano

1) PAIRWISE.fsgd file

-------------------

GroupDescriptorFile 1

Class subj1

Class subj2

...

Class subjN

Variables TP1-vs-TP2

Input subj1_tp1 subj1 1

Input subj1_tp2 subj1 -1

Input subj2_tp1 subj2 1

Input subj2_tp2 subj2 -1

...

Input subjN_tp1 subjN 1

Input subjN_tp2 subjN -1

----------------------------

2) mean.mtx

1 1 ... 1 0

------------------------------

3) tp-effect.mtx

0 0 ... 0 1

------------------------------

4) mri_glmfit --glmdir PAIRWISE --y ces.nii.gz --wls cesvar.nii.gz --surface fsaverage rh --nii.gz --fsgd PAIRWISE.fsgd doss --C mean.mtx --C tp-effect.mtx

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