That program does not get much use, certainly including by
me. And while the help suggests your usage might be okay,
after a little playing, I do not see how.
Consider David's
example from two years ago. That seems
to work.
3dConvolve -input zero_template+orig \
-polort -1 \
-num_stimts 1 \
-stim_file 1 stim_doughnuts.1D \
-stim_maxlag 1 14 \
-iresp 1 iresp_doughnuts+orig \
-output convolved_result
- rick