afni.nimh.nih.gov

Hi, Jewel-

That does seem like a high order of polynomials. Is the time interval of that set of EPI data (total number of time points times TR) quite long?

Maybe a maximum polynort number could be specified, and a high pass filter used to remove the baseline in this case.

What is the full afni_proc.py (AP) command, and do you have a the tee'ed log file of terminal text for the complete output?

thanks,
pt