Sending a trigger during a stimulus' presentation

[Fabrizio Ferri Benedetti]

 Hi Peter,

> what are you sending triggers to? EEG unit?

 Yes.

> if accuracy or no response is all the info you 
> want, why not just blend behavioural file with 
> EEG for sorting purposes.

 I'm not sure about what you mean by "blending"; of course, comparing an
E-Prime output file with 500 stimuli with an equivalent EEG recording,
can be quite a painful task if done manually. That's why I wanted to
display the response in the EEG recording even during the inter stimulus
interval. 

>e-prime executes code sequentially, so can't send triggers in the 
> middle of an object that is executing

Bad news then :-(

 Thanks anyway,

       Fabrizio

> 
> 
> 
> At 04:38 AM 30/01/2007, you wrote:
> 
> >Hi!
> >
> >I'll try to make it simple:
> >
> >- In my procedure, an InLine BEFORE the stimulus 
> >send a start trigger via serial port using OnSet 
> >method; an InLine AFTER the stimulus send 
> >triggers accounting for accuracy or lack of 
> >response (as the subject's answer terminates the slide)
> >
> >-In the same procedure, there is also a 
> >fixed-time pause after the stimulus. It happens 
> >that the subject may answer during the pause, 
> >and not during the stimulus. Now, as the pause 
> >(an empty slide) can't be terminated by the 
> >subject's answer, every trigger I process with 
> >an InLine after the pause itself will always be sent after the pause.
> >
> >Is there any way to send triggers (or perform 
> >actions) if the subject answers during the 
> >presentation of a stimulus 
> >(slide/text/pause/etc)? That is: I don't want 
> >the answer to terminate the stimulus or pause; I 
> >just want the answer to perform scripted actions 
> >(like sending triggers) along the duration of the slide.
> >
> >Hope I made myself clear...
> >
> >Cheers,
> >
> >Fabrizio
> >
> >--
> >Fabrizio Ferri Benedetti
> >Departamento de Psicología Evolutiva y Educativa
> >Facultad de Psicología
> >Universidad de Valencia
> >http://www.uv.es/fafebe
> >
> >
> >
> >
> >
> >
> >--
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28/01/2007
> >
> 
> Peter Quain
> School of Psychology
> University of New England
> Armidale, Australia, 2351
> Phone:  02 6773 5193
> Fax:      02 6773 3820
> 
> 
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--
Fabrizio Ferri Benedetti
Departamento de Psicología Evolutiva y Educativa
Facultad de Psicología
Universidad de Valencia
http://www.uv.es/fafebe