Hi Andy,
So you mean to jitter by an integral multiple of your 2 second
TR, is that correct? If so, that is how it should already work.
When running RSFgen, it is common to leave 20%-50% of the TRs
without any stimulus. For example, one might have 500 TRs, and
3 stimulus classes with 120 TRs each. That would be using 360
TRs for stimuli (72%) and 140 for the rest state/baseline (28%).
The stimuli would be separated by random numbers of rest state
TRs. Is this the sort of jittering you are hoping for?
- rick