> In a separate set of analyses, we will want to keep data for the whole run in the model (meaning we will not be estimating each trial separately).
There are two approaches to handling reaction time: one is to treat it as trial duration, and the other is to consider it as a modulation variable. There is no consensus in the field as to which is more preferable.
If you go with the former approach, I suggest dmUBLOCK(x) instead of dmBLOCK so that you're forced to decide exactly what you want to get out of the analysis by controlling the interpretation of the output: which trial duration do you want to associate with as for the BOLD response magnitude?
Gang
Edited 1 time(s). Last edit at 10/23/2018 02:31PM by Gang.