Hi MVPA folks, I am running a correlation based searchlight, and I have a couple of questions.
1), When the searchlight sphere get close to the brain edges, it will include surely fewer number of voxels. Based on my limited readings, I have not seen how people address this issue. Would somebody help explain how this should be solved ? 2), Most of the MVPA analyses using searchlight approach are using SVM. Because of the nature of my hypothesis, I am comparing two correlations: e.g., if A-B correlation is higher than A-C. Theoretically, I think it makes sense to run correlation based searchlight. But just want to check is there a reason for not using correlation based searchlight? Any answer will be appreciated !! Best, Frances -- Jingwen Frances Jin Department of Psychology Stony Brook University
_______________________________________________ Pkg-ExpPsy-PyMVPA mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa
