Hi,
> - firstly for a group map, after chosen a threshold, examine all the
> clusters surviving the thresholding. For giving a sense to a particular
> cluster, I have the feeling that we have to find a logical (according to the
> experimental paradigm) explanation for all (or the large majority) the
> clusters exhibiting a greater significance.
And here is the Rorshach ink blot problem of functional imaging.
When I first started giving small talks about imaging, I used to put
up an SPM map generated from random numbers and ask the audience to
tell me what experiment it had come from - the answers were very
convincing.
I think the only solution is to do studies with a specific prior
anatomical hypothesis.
Best,
Matthew
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