Thanks everybody for your helpful comments!
> Are the results correct at the first-level or are those also inverted?
The first level results are not quite as obvious but now I've checked them again critically, yes, they are also inverted.
> have you checked whether both analyses were run with or without global signal correction?
No, I'll do that, thanks.. but since the problem appears on first level already, it's probably not that.
> (1) The onsets specified for each of the conditions at first level
(2) The order of specification of the conditions at first level (which would decide the contrast specification)
I already checked that, but may do so again. Of course one can never rule out the improbable, but.. I'd like to test all the other options first.
Iris Klossika
Central Institute of Mental Health
Mannheim, Germany
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