Hi Gerome,
This looks good. The AM there is really to say there is *some* sort of modulator in the timing file. In this case, it is using duration modulation (which is why AM1 is used, rather than AM2, which would be more typical for amplitude modulation). Applying dmUBLOCK(0) (or just dmUBLOCK) will be the same as using dmBLOCK, except that the peak of a full (15+ second) convolution will be at 1, meaning the resulting beta weight would be the actual percent signal changed for a fully convolved event. That is also appropriate here, since the events are all longer than 15 seconds. If you plot the regressors, they should all scale up to 1.0.
This looks good to me.
- rick
Edited 1 time(s). Last edit at 08/05/2019 12:42PM by rick reynolds.
