Hi Mark,
I had a somewhat similar issue in the temporal lobe, which was due to the gray
matter being darker than what FreeSurfer assumes. This caused the gray-pial
boundary to be placed closer to the white surface than it should be.
For me the solution (suggested by Bruce) was to call mris_make
Dear FreeSurfer Team,
For some of my brains, I cannot seem to help FreeSurfer trace the pial
surface near the insula for some (but not all) of my subjects. I have
attached a powerpoint file with screenshots to this link for NMR users (
http://gate.nmr.mgh.harvard.edu/filedrop2/?p=41pbame2sz8 )
A
