Hi all,

We've noticed some strange behavior with the original stats/zstat* images in
that there is a spike in the histogram of voxel values exactly at the threshold
specified.  For example, if an analysis was run with cluster
analysis(z=3,p=0.05), there is a spike in the histogram of the stats/zstat*
image at exactly z=3.  However, if post-stats were not run, this behavior is
absent.  This is in FSL 3.1.

Is the stats/zstat* image not the "raw" unthresholded image, calculated voxel by

Thanks & Happy Holidays,


Ram Pratiwadi
Research Assistant
University of Pennsylvania

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