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Reading through the fine SPM manual by Dick Veltman and Chloe Hutton I
came across the following in the section on event related fMRI model
specification"

basis functions (Finite Impulse Response): uses a set of 'mini-boxcars'
to model peri-stimulus time.

In my version of spm99, this option is not available.  If I search
through the code of spm_get_bf, I don't see this.  It also doesn't seem
to be in the updates.

This is a great way to do the analysis.  I've been doing it by hand and
it's a pain.

Any info would be greatly appreciated.

Thanks,
Souheil

--
Souheil Inati, PhD
Research Assistant Professor
Center for Cognitive Neuroscience
Dartmouth College
6162 Moore Hall
Hanover, NH 03755-3570
web:   http://www.dartmouth.edu/~inati
email: [log in to unmask]
phone: (603) 646-0173
FAX:   (603) 646-1181