you can also do a paired analysis (search the wiki) doug On 05/27/2015 05:51 PM, Martin Reuter wrote: > Hi Mike, > > I doubt the 2-stage-model scripts will work for you. They were > designed for structural analysis. > But you can make use of the within-subject template space to do you > fmri analysis (map all fmri results there and do all within-subject > comparisons in that space before going across subjects). Mapping stuff > to the first time point could potentially bias your results and using > the within-subject template (base) will avoid that. > > Cheers, Martin > > On 05/27/2015 05:27 PM, Michael Kranz wrote: >> Hi, >> >> I have two groups and two time points (pre and post). I want to >> investigate group*time interactions in an fMRI task taken at both >> time points. >> >> I have run all the subjects through first level FEAT analyses in FSL >> as well as the longitudinal Freesurfer pipeline. >> >> I'm thinking of registering the FEAT first level analyses to the each >> corresponding longitudinal time point first. Then, if I want to do a >> group level analysis, can I still use the longitudinal two stage >> process or is this just designed for structural measures >> (http://freesurfer.net/fswiki/LongitudinalTwoStageModel)? >> >> Or, would you suggest another approach for group analysis for >> longitudinal fMRI data taking advantage of Freesurfer? >> >> Thanks, >> Mike Kranz >> >> >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > -- > Dr. Martin Reuter > > Instructor in Neurology > Harvard Medical School > Assistant in Neuroscience > Dept. of Radiology, Massachusetts General Hospital > Dept. of Neurology, Massachusetts General Hospital > Research Affiliate > Computer Science and Artificial Intelligence Lab, > Dept. of Electrical Engineering and Computer Science, > Massachusetts Institute of Technology > > A.A.Martinos Center for Biomedical Imaging > 149 Thirteenth Street, Suite 2301 > Charlestown, MA 02129 > > Phone: +1-617-724-5652 > Email: > mreu...@nmr.mgh.harvard.edu > reu...@mit.edu > Web :http://reuter.mit.edu > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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