Hi,
I have noticed that cluster p-values provided by easythresh command and
those that come from feat GUI when using cluster threshold in post-stats
are different. This happens both when using BET-extracted whole brain
("mask.nii.gz") and when using a small volume mask (such as occipital
cortex mask). The cluster locations and sizes are identical, but the
associated p-values differ (are smaller, "more significant" from feat
GUI). I was wondering what algorithms are used to estimate the
cluster-associated p-values and what may account for this discrepancy.
Thank you,
Dasa
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