afni.nimh.nih.gov

The -tcat_remove_first_trs and -tcat_remove_last_trs options remove a constant number of time points from the start and end of each run.

In order to remove some from just one run, you will have to do that before running afni_proc.py. e.g.,

3dTcat -prefix run3.drop.last.2 run3+orig'[0..197]'

- rick