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

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