Send Trigger to EEG using E-Prime Professional 2.0

[Paul Groot]

PS. The screendump shows that you are using EP2 pro. This version allows
you to specify triggers using Task Events on Trigger1 instead of the
OnsetSignal-properties. In that case you SHOULD define a ParallelPort
device first.

PS2: David also pinpoints an annoying issue with EP2: PreRelease is set to
'same as duration', which might result in zero-duration triggers...

Paul


On 21 October 2013 19:37, Paul Groot <pfc.groot at gmail.com> wrote:

> 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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>

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