== Check BEM Surfaces == Set up your Freesurfer environment. Set SUBJECTS_DIR to your MRI directory. Load an MRI image: {{{ tkmedit YourSubject T1.mgz }}} Choose "File -> Load Main Surface", then "Browse". Go to the "bem" sub-directory (you are in "surf"). Choose a surface, e.g. "inner_skull-5120.surf", then "OK". The surface should be shown on the MRI image. Use for example "Slice" to navigate.