Dear all,
Just now I’m trying to finish fMRI analysis, which do interaction between questionaries’ answer and beta series. I’m quite new in spm and marsbar. In our study we have 35 subjects. In second level we used full factorial design with two session [pre/post]; two group of participants [laik/expert]; and five condition. Totally give us 20 basic parameters [2;2;5].
Our second lvl SPM.mat looks like these:
L1c1; L1c2; L1c3; L1c4; L1c5; L2c1; L2c2; L2c3; L2c4; L2c5; E1c1; E1c2; E1c3; E1c4; E1c5; E2c1; E2c2; E2c3; E2c4; E2c5
L1c1 = Laik session 1 condition 1; L2c3 = Laik session 2 condition 3;
E1c5 = Expert session 1 condition 5…. etc.
Now I need extract the beta values for specific ROI for each individual participant, but from second level contrast. These contrast does not exist on first lvl because is include interaction between session.
I try to extract beta values through marsbar by second lvl SPM.mat which also include T-contrasts which I want, but marsbar give me just beta values for basic conditions. I’m not able to find solution for this problem.
Thank you
Petr
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