Dear freesurfers,<br>I&#39;ve been analyzing my retinotopy , have finally been able to run fieldsign-sess without running into dimension mismatch errors.<br><br>Everything seemed ok until I tried looking at the fieldsign maps on flat patches.  Some patches are warped with odd out of plane swirls.  In others, all i get are odd shaped shards and triangles.<br>
<br>What might be the cause?<br><br>thanks,<br>Michelle<br>