Hi,
I am using matlab 7.6.0.324 and SPM8 and I wondered if anyone has
encountered the following please or is it that my understanding of FWE is
wrong...
I was checking activation of subjects without correction at 0.99 (to see if all
the brain was there) and then 0.001 to see anything meaningful. I got
meaningful activation in the temporal lobes (which is what we expect). Then I
tried FWE. There was nothing with threshold of 0.05 but I checked at 0.3
then 0.6 then 0.9. There was no activation. This can't be correct can it?
I tried this both on a group level analyses and 1 individual subject. The
individual subject had a little activation at FWE 0.9 but not much, without
corrections it was as you'd expect. Am I missing something? I have the
latest version of SPM8 as I had to reinstall yesterday.
Many thanks,
Vanessa
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