Dear Adams,
> How Can I define condition onset and duration when it doesn't occur in a particular run.
As Donald points out, if a condition doesn't exist, you may not want
or need to define it. However, for cases where you might want to, one
trick is to have a single value for the last timepoint (i.e. the last
scan) in a session. Assuming you are using an hrf to generate your
model, this will not actually impact your results (because of the
delay, the response will be modeled to occur after you have stopped
scanning).
As always, best to check and make sure this works as expected…
Hope this helps!
Best regards,
Jonathan
--
Jonathan Peelle, PhD
Assistant Professor
Department of Otolaryngology
Washington University in St. Louis
Office: (314) 362-9044
http://peellelab.org || http://jonathanpeelle.net
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