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Rainer This is only true for non-interleaved data. See the article, page 1495, bottom of left column. Darren On Thu, Jun 30, 2011 at 11:51 AM, Rainer Bögle <[log in to unmask]> wrote: > Dear Yuko, > > the current consensus is that "slice timing correction in preprocessing" > should not be done, but the timing of slice acquisition should be modeled. > See: "Kiebel et al. NeuroImage 34 (2007) 1487–1496 Dynamic causal modeling: > A generative model of slice timing in fMRI". > > This has been added to the DCM code since SPM5 (see Kiebel et al.). > > Kind regards, > Rainer > > > > On Thu, Jun 30, 2011 at 5:28 PM, Yuko <[log in to unmask]> wrote: >> >> Dear all >> I would like to ask a question about my fMRI data which was acquired >> interleaved (TR=3 s). >> I would like to use these data for DCM. >> When I try to use these data, should I do slice timing correction in a >> very first preprocessing step? >> Or, shouldn't I use these data for DCM? >> I searched SPM Email list and found a mail from Sam Torrisi to Stefan, >> 2010-12-10. >> >> (http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind1012&L=SPM&P=R62376&I=-3&d=No+Match%3BMatch%3BMatches) >> But I couldn't decide that I had to do slice timing correction in a very >> first preprocessing step, or throw away these data. >> Any help will be highly appreciated. >> Thank you in advance. >> Regard, >> Yuko >> > > -- Darren Gitelman, MD Northwestern University 710 N. Lake Shore Dr. Abbott 11th Floor Chicago, IL 60611 Ph: (312) 908-8614 Fax: (312) 908-5073