Dear FreeSurfer Team,

I would like to do a ROI analysis focusing on the primary somatosensory
cortex (S1) using Freesurfer and see the potential alterations after a
(behavioral) treatment .
I am wondering how I can do that? First, I picked and looked at the
postcentral gyrus and sulcus, but I am specifically interested in the face
area. Is there a way to make my analysis more accurate?
I am using Freesufer 7.1.1

Thank you for your answer! I greatly appreciate it.

All the best,
Eszter Boros