Hi Freesurfer Experts, 

I am finding strange loops in the pial surface of my subjects and I'm not sure how to fix them. They do not seem to be caused by problems in the brainmask.mgz - the wm surface looks fine - and they do no seem to be caused by problems in the wm.mgz. What is the best way to deal with them? 
I have attached a few tiff examples of these loops as visualized in the brainmask.mgz and accomanying saved points in the inflated surfaces so that you can see what I am referencing. Any advice you have would be most appreciated! 

Best, 

Laura. 

--
Laura Tully
Social Neuroscience & Psychopathology
Harvard University
840 William James Hall
33 Kirkland St
Cambridge, MA 02138
ltully@fas.harvard.edu
--
My musings as a young clinical scientist: http://theclinicalbrain.blogspot.com/