Hi SPM users!
I’ve got a question about habituation through time, maybe it’s very basic, but I’m kind of beginner.
I’ve got a 3 run design, using emotional faces, my interest contrast is : FEAR+ANGER vs NEUTRAL (I’ve got a Baseline moreover).
I’m wondering wether there is a « run effect », I mean I’ve got less and less activation on my contrast over time, either on WB, or on my ROI (amygdala for example)
Basically, I thought about doing analysis on each run, and compare the SPM. But is there some statistical test which could do that easily? F-test? ANOVA? Time modulation?
I’ve got only 3 subjects for now.
Thanks a lot for your help
Axel
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