Thanks!
> If those contrast make sense to you, do it with 3dttest++ as a two-sample t-test (the covariatecan be added too).
If I understood correctly, I cannot do that, since each group (e.g A1 and B2) includes different subjects and will have a different covariate file. 3dttest++ do not handle two Covariate files, right?
> The conjunction among those 4 conditions? If so,
> what you're describing is the conventional
> approach, but personally I'm not a fan of
> dichotomization.
I see. What would the glt code look like for such contrast against baseline?