Hi,
> >"Furthermore, to identify regions of activation common to all three fMRI
> >studies (Friston et al., 1999), a conjunction analysis was performed by
> >selecting all the individual contrasts during the result assessment in
> >SPM99.
It might also be worth having look at the paper at:
http://www.sph.umich.edu/~nichols/Conj/
which is also in press for NeuroImage. We go into some detail on the
problems of using SPM conjunctions for tests of "activation common to
all ..."
Best,
Matthew
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