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Hello experts,

I ran some PPI analysis using the gPPI toolbox using create_sphere_image to define the VOI.  I set the coordinates for the area of interest peak activation on the second level analysis (using a 6mm sphere radius).

I was wondering:

- does it threshold for each subject? and if so how do you define the threshold, is t always automatic to p<0.05?
- does it allow for the sphere to move depending on the subjects peak activation for that area?

Thanks,

Ben