Hi,
FEAT estimates a number of event trigger times ( resolved at
0.1TR ) from the model and then "collapses" the data for the events
onto the peristimulus plots. For the cases where the events are non-
repeating, the peristimulus plots are potentially less informative
than for a repeated-event design.
Hope this helps,
Matthew
> Good morning. Our group has recently begun conducting event related
> experiments from which we are trying to build BOLD response
> waveforms for
> individual event types. In looking at the peristimulus plots I find
> that I
> am quite confused on what they are illustrating. Attached is an
> example.
> My question is, 'What is plotted on the X axis?' It shows
> peristimulus time
> in TRs but only goes through 8 with multiple data points for each
> time point
> when the whole, non-repeating run consisted of 130 TRs. Any help in
> clarifying this would be greatly appreciated. Thanks!
>
> Matthew Ward, Ph.D.
> Center for the Development of Functional Imaging
> UAB
> <event.png>
