Hello again!
Firstly, let me thank you for your precious previous advices, which pointed me in the right direction.
I have another question for you: I have read your article on Reliability of MRI cortical thickness measurements and its relation with scanner and field, and I would like to know what function did you use to subtract the subjects' average cortical thickness files in order to have a cortical thickness difference layer. I don't know if this is a very basic question, but I can't seem to find how to do it with FS.
Thank you!
Joao Pereira