you can find a little more information here:
http://sourceforge.net/docman/display_doc.php?docid=6217&group_id=13529
the code in my roi toolbox (available at the same web site) implements
this kind of PSTH averaging based on an FIR model.
cheers
russ
On Aug 3, 2004, at 8:20 AM, Neggers, S.F.W. (Bas) wrote:
> Dear SPMers,
>
> I'd like to read a little bit more about the theory behind extracting
> a PSTH from your data based on the estimates of a simple FIR model. I
> read through the code in spm_graph.m and get_psth.m from Darren, and I
> think I get the basic idea, but that's just not enough. Is there a
> more formal description of the PSTH approach followed in SPM, perhaps
> in the form of a paper doing some kind of validation?
>
> I plan to implement get_psth in an activation cluster based PSTH
> extractor, and really exactly like to know what I'm doing here.
>
> Kind regards,
>
> Bas
>
>
> --------------------------------------------
> Dr. S.F.W. Neggers
> dept. of Psychonomics,Helmholtz Institute
> Utrecht University
> Heidelberglaan 2
> 3584 CS, Utrecht, room 17.09
> the Netherlands
> Tel: (+31) 30 253 4582 Fax: (+31) 30 2534511
> E-mail: [log in to unmask]
> Web: http://www.fss.uu.nl/psn/pionier
> --------------------------------------------
>
>
---
Russell A. Poldrack, Ph.D.
Assistant Professor of Psychology, UCLA
Franz Hall, Box 951563
Los Angeles, CA 90095-1563
email: [log in to unmask]
phone: 310.794.1224
fax: 310.206.5895
web: http://www.poldracklab.org/
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