I'd like to define individualized (functional) ROIs by laying a sphere around the maximally activated voxel within an anatomically defined mask. Someone suggested me to try the SPM 8 Util Volume of Interest, which I haven't really noticed so far. However, it doesn't seem to be possible to mask a contrast picture, which is loaded via 'SPM threshold' with an image file as it can be done when loading a contrast via the GUI (Results button). As it is possible to mask the SPM threshold picture with another contrast I really don't see why it isn't possible to mask it with an anatomically defined mask or am I missing something here?
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