Send Trigger to EEG using E-Prime Professional 2.0

[Paul Groot]

The script looks fine, but are you sure that c.GetAttrib("Target")=1
evaluates to true? Just add a debug line to check if the if-statements runs
as expected:

Debug.print "Target"

Also notice that value 128 corresponds to the highest bit of the 8
datalines. Also, adding the ParallelPort device is not required when using
this trigger mechanism because you directly send data to the data register
of the printer port. I'm not sure, but this might even give problems when
the the LPT mode is not correctly set.

cheers
Paul





On 21 October 2013 12:43, Piercarlo Mauri <piercarlo.mauri at gmail.com> wrote:

> Hi,
> I need E-Prime to send triggers to my EEG signal recorded with BrainAmp.
> The trigger cable is connected from the parallel port to the BrainAmp (in
> windows the resource tab of the LPT1 port says: Interval I/O 0378-037F,
> Interval I/O 0778-077F). In E-Prime I added the parallel port on LPT1 to
> the devices used. I need that in a series of numbers (with attribute
> "Target") that will be shown for 100ms in the slide "Target1", when will
> appear the number 1, a trigger should be send to my EEG recording... I
> created an Inline script (the one called Trigger) with this command:
>
> ----------------------
> If c.GetAttrib("Target")=1 Then
>    Target1.OnsetSignalEnabled=True
>    Target1.OnsetSignalPort=&H378
>    Target1.OnsetSignalData=128
>
>    Target1.OffsetSignalEnabled=True
>    Target1.OffsetSignalPort=&H378
>    Target1.OffsetSignalData=0
>
> End if
> ---------------------
>
> But it doesn't work, anyone can help me? I attached a screen of the
> sequence of my exp.
> Thank you
> PM
>
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