Hi,
Set the EV to "Empty" in the Full Model setup.
cheers,
-MH
--
Michael Harms, Ph.D.
-----------------------------------------------------------
Conte Center for the Neuroscience of Mental Disorders
Washington University School of Medicine
Department of Psychiatry, Box 8134
660 South Euclid Ave. Tel: 314-747-6173
St. Louis, MO 63110 Email: [log in to unmask]
On 4/29/14 12:38 PM, "Danielle Miller" <[log in to unmask]> wrote:
>Hello FSL Experts,
>
>I have a contrast that exists in some runs but not in others. I
>understand that in the second level, you would have to process these
>contrasts separately with only runs that contain these copes. However, my
>question is how can I line up copes to be the same value in the first
>level if the runs that have those contrasts may be missing other
>contrasts?
>
>For example:
>run01 - has congruent correct, incongruent correct, no incongruent
>errors, but congruent errors
>run02 - has congruent correct, incongruent correct, incongruent errors
>and congruent errors
>When I model them,
>run01 has let's say 4 contrasts, but contrast 03 involves congruent errors
>run02 has 4 contrasts but congruent errors fall under contrast 04
>
>Is there a way to make sure these copes align by forcing FSL to model a
>fake EV for run01 (so that both run01 and run02 have congruent errors
>fall under cope 04)? It doesn't work to switch incongruent and congruent
>error order, because in other runs it may be the reverse set-up.
>
>Thanks for any help,
>Danielle
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