Hi Tamara,
That is right. You can specify the 'basis' function and
stim file 'type' separately, by editing the table entries
directly.
So use 'basis' dmBLOCK and 'type' AM1 for the stimulus
class, and 'basis' BLOCK(1.5) and 'type' times for the
feedback condition.
You do not need to bother with the 'init basis funcs' or
'init file types' boxes.
Check the resulting afni_proc.py command that is
displayed, to be sure that -regress_basis_multi has the
correct basis functions, and -regress_stim_types has
AM1 and times.
- rick