Hi Freesurfer team,

I'm trying to run a longitudinal group analysis (2 groups, 2 time points) using the paired analysis procedure: https://surfer.nmr.mgh.harvard.edu/fswiki/PairedAnalysis.

I have followed all the instructions but when it comes to the mri_glmfit, it says that my contrast files has 2 columns, while the matrix has 44. What did I go wrong?

I join with this message the log, fsgd and contrasts files. Thank you!

Nick Corriveau-Lecavalier, B.Sc. (Hons.) Étudiant au Ph.D. recherche/intervention, option neuropsychologie clinique Coordonateur à la recherche, Association étudiante des cycles supérieurs en psychologie de l'Université de Montréal (AÉCSPUM) Université de Montréal Centre de recherche de l'Institut universitaire de gériatrie de Montréal, bureau M7819