¥ -stim_maxlag k p =
option to set the maximum lag to p for stimulus timing file #k for k=0,1,2,É
H Stimulus timing file input using command
line option -stim_file k filename
as before
H Can also use -stim_minlag
k m option to set the minimum lag if you want a
value m different from 0
H In which case there are p-m+1 parameters in this HRF
¥ -stim_nptr k r =
option to specify that there are r stimulus subintervals per
TR, rather than just 1
H This feature can be used to get a finer
grained HRF, at the cost of adding more
parameters that need to be estimated
¥ Need to
make sure that the input stimulus timing file (from -stim_file) has r entries per TR
¥TR for -stim_file and for output HRF is data TR ü r