Dear all,

I was wondering whether it is possible not to provide the skull stripped EPI into PESTICA since I am used to skullstrip my subjects in the first step of the preprocessing while running PESTICA later when my subjects are already skullstripped. Could I at least trick anyhow PESTICA by feeding the skullstripped image and using the same image as the mask? or any other solutions? 
I really wish to avoid to skullstrip my image once again or changing my pipeline just for physiological correction.

By the way, can anyone clarify why the skullstripped image is required by PESTICA?

Thanks in Advance
R.