Hi Freesurfers, I've been looking at the wiki for information on doing an surface analysis using GFEAT results for within subject, across multiple runs. On the wiki, a fixed effects analysis was used because there were only two runs. I have four runs and FSL uses FLAME 1 and FLAME 1+2.

1. Should/how do I do I random effects for 4 runsb?

2. How does one do a group surface analysis this for multiple subjects who each have 4 runs?

Thanks. Michelle