Hi, Experts,
A quick question: When I do the ROI analysis, after I decide the ROIs (either anatomical based, or based on the activation coordinates) and make the masks, should I do the 3dfractionize step before I do the ROIstats?
Is the 3dfractionize step a must?
Thanks so much for your time,
J
Usually you have to do 3dfractionize to match the resolution of the ROIs to your functional datasets. In my pipelines it is always a “must”. A quick look at your two datasets will tell you if they match on resolution, something like this:
3dinfo -prefix -n4 -d3 ROIs+tlrc.HEAD stats+tlrc.HEAD
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