[pymvpa] BOLD delay
Yaroslav Halchenko
debian at onerussian.com
Thu Feb 11 13:57:20 UTC 2016
On Thu, 11 Feb 2016, Christopher J Markiewicz wrote:
> On 02/11/2016 08:28 AM, Salim Al-wasity wrote:
> > Dears
> > When we do the classification, do we need to take into our account the
> > delay of the BOLD signal and shift our samples by 5 sec.?
> > Sincerely
> > Salim Al-Wasity
> > PhD student
> > University of Glasgow
> Generally speaking, you should model the the events of interest with
> hemodynamic response functions and use the beta estimates as your
> samples for classification. If you've done the HRF modeling, then
> there's no need to do an additional shift.
yeap... checkout http://www.pymvpa.org/tutorial_eventrelated.html on how
to extract GLM estimates for your conditions within PyMVPA
--
Yaroslav O. Halchenko
Center for Open Neuroscience http://centerforopenneuroscience.org
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834 Fax: +1 (603) 646-1419
WWW: http://www.linkedin.com/in/yarik
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