This is because cluster inference is only supported in SPM for T images. There were some efforts underway to integrate (or reimplement) Keith Worsley's stat_threshold F results into SPM but I'm not sure what the status is. FYI you can get F cluster size inference with the NS toolbox (which basically is a wrapper for stat_threshold), but I don't think NS has cluster FDR.
-Tom
On Mon, Jan 23, 2012 at 10:22 PM, MCLAREN, Donald
<[log in to unmask]> wrote:
Why is topological FDR only computed for T-statistics? It looks like it is not computed for F-tests based on spm_getSPM.m lines 728-735.
Best Regards, Donald McLaren
=================
D.G. McLaren, Ph.D.
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