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