Hi Anderson,
no, there is a misunderstanding. I include all 4 conditions in the model. The inputs at the 2nd level are not the conditions but instead the sessions (for which first level analyses were carried out). The conditions and subsequent contrast are used from the first level analysis. Therefore I can't use a mean reaction time per condition for every input (at least unless I just include the mean reaction time in that scanning session).
Thanks,
Susanne
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