Send different markers for different randomly appearing stim

[cblaison]

See topic "Startle probe complex randomization" for the solution.

On Feb 13, 11:05 pm, cblaison <hessl... at googlemail.com> wrote:
> Hi all..me again
>
> It is about the same prog (please see my last mail for a description
> of the prog), but another question. Please download the prog here:
>
> https://docs.google.com/leaf?id=0Bw6aNdKBxq4tM2JlOGE4N2ItNmY1Ni00MDY3...
>
> I make psychophysio measurement, so I have to synchronize what is
> triggered by eprime with the physiological data of the participants.
> What I do is sending a signal through the port of the computer to mark
> in the physio what type of stim is presently shown by eprime. For
> example:
>
> write port &378, 2
> sleep 50
>
> write port &378, 0
> sleep 50
>
> What I would like to do is to send a different signal (thus place a
> different marker) for the different face stimuli of my prog. Problem
> is that the faces appear randomly, so eprime has to note which face is
> selected and send the corresponding signal through the port (for
> example if "211.tif" than send "4" through the port, if "221.tif" than
> send "8" through the port, etc..) Can someone please help me? Thank
> you very much
>
> cheers,
> christophe.

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