> I am doing a VBM type analysis with FA maps between two groups using
> 2sample t-test in SPM2.
This isn't really a VBM analysis. I would really consider it as applying SPM
to FA images.
Is there a reason why you want the values sampled from the original image -
rather than the spatially normalised image? That would make life much
easier.
Best regards,
-John
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