sending trigger during stimulus presentation

[David McFarlane]

Tobias,

Didn't we discuss this already at 
https://groups.google.com/d/topic/e-prime/z8PQMH1cf70 ?

And now, if you have upgraded EP2.0.10.x, and under the right 
conditions, you might handle this much better with the new Task 
Events feature (see http://www.pstnet.com/support/kb.asp?TopicID=4803 
, and the New Features Guide).

-----
David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster)


At 4/30/2013 05:53 AM Tuesday, Tobias wrote:
>I am using E-Prime 2.0 with EEG paradigms. I have the following problem:
>
>So far, I have used the "terminate" option for responses so that a 
>display sets off as soon as a subject responds. I would then have 
>some fake object that is only there to send a trigger to the EEG computer.
>The idea is, with the onset of that fake object, a trigger is sent 
>and this trigger is thus locked to the offset of the previous object 
>- that sets off when subjects respond.
>
>So far so good. This time, I would like to present a stimulus for 
>exactly 500 ms, no matter how fast subjects react.
>Is it possible to send a trigger during presentation of a stimulus? 
>It would be perfect if there was an "end option" like "(none, but 
>execute inline...)"
>
>Any help is much appreciated.
>Tobias

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