On Wed, 16 Jun 2021 08:58:00 +0200, isabelle Faillenot <[log in to unmask]> wrote:
>Hi
>you must have at least one con0001 image at first level : enter 1 as the contrast for the regressor describing the trials. In fact, it is like 1 for trials and -1 for all other timing points (rest or control).
>
If you are interested in the positive effect (contrast "vector" [1]), you can simply enter the beta images for that regressor.
Volkmar
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