Model all conditions.
> On Mar 28, 2017, at 3:34 AM, Mike <[log in to unmask]> wrote:
>
> Hi,
> Suppose I am interested in functional connectivity during an EV period, and I have 4 different conditions during that period (i.e., 4 EV: A, B, C, D). I'm only interested in PPI contrast "A>B". Should I construct all 4 PPI regressors (for A, B, C and D) in my first-level GLM, or I can just set up 2 PPI regressor (only A and B)? (I have an impression that even though I'm only interested in "A>B" I should construct all 4 PPI regressors).
> Thanks. Mike
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