Hi Freesurfers,<br>I&#39;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.  <br>
<br>1. Should/how do I do I random effects for 4 runsb?<br><br>2. How does one do a group surface analysis this for multiple subjects who each have 4 runs?<br><br>Thanks.<br>Michelle<br>