= Using FreeSurfer = ''Authors: Francois Tadel '' The open-source software FreeSurfer can be used to extract the cortical envelope from a T1/T2 MRI and register it to an atlas. The process is fully automatic and the results can be imported in Brainstorm with just a few mouse clicks. If you are using FreeSurfer, please '''register''' on their website ([[https://surfer.nmr.mgh.harvard.edu/registration.html|registration page]]) and '''cite '''the appropriate references. <>