sending trigger during stimulus presentation

[Tobias]

Dear all,

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

[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)