afni.nimh.nih.gov

To add to Paul's and Peter's suggestions, note that afni_proc.py
does have -write_3dD_script and -write_3dD_prefix options, for
just such an occasion. Adding those to the old AP command, and
including the new contrasts will make an appropriate 3dDeconvolve
script that assumes the identical pre-processing.

But do you need to contrast t-stat? If not, 3dcalc is a good way to go.

- rick