Hi,
My group contrast yielded a peak voxel at MNI coordinates x/y/z. I wanted to extract individual parameter estimates at this voxel. To this end, in MarsBar, I created a sphere centered at x/y/z (radius=1). When I used "design --> set design from file" and then "extract ROI", it just did not allow me to do it (however, I noticed that it was not problematic if I used the same method to extract individual data at different coordinates. That is, sometimes it did not allowed me to extract data at some coordinates). Anyone knows why?
Manuel
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