Hi Maria, you can do it with the commandline tools (mri_glmfit) by specifying --mask or --label. This is a common thing to do, but you will need to run simulations for multiple comparisons correction.
doug On 01/04/2013 06:35 AM, Nick Schmansky wrote: > Maria, > > In qdec there is not a built-in mechanism to restrict analysis to a > particular region. By design it runs a whole-cortex analysis, masking > just the medial (non-cortical) region, and then i suppose if your lucky > (if your ROI is significant compared to everything else) your region will > appear as a cluster which hopefully would survive a subsequent > multiple-comparisons analysis. There might be a way to mask the glm > analysis using the command line tools, but I dont think its recommended. > Others might comment differently. > > Nick > > > >> Dear Freesurfer users, >> I have a question regarding qdec and I would like your help. When >> conducting qdec analyses, is it possible to restrict the analyses to >> specific brain regions? I would like to limit my qdec analyses to brain >> regions typically associated with social cognition and have chosen these >> regions based on the existing literature. If so, could you tell me how >> this >> is done? >> Thank you so much for your help! >> Best, >> Maria >> >> -- >> Maria Jalbrzikowski, M.A. >> University of California, Los Angeles >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
