afni.nimh.nih.gov

Hi Pat,
There is something fishy with that EPI. I am not sure why you have negative values in a time series dataset. Typically, all these values are +ve.

Have you looked at subj_EP_cat+orig in AFNI? Does it look OK?
Without any extra alignment, does subj_EP_cat+orig overlay properly atop subj_MP+orig?

cheers,
-ziad