Labeling EEG Triggers

Alphonse Stickle alphonse.stickle at gmail.com
Thu Feb 7 01:42:03 UTC 2013


.. for clarity sake, sorry, typo - Decimal address = 888, not 88

At 12:40 PM 7/02/2013, you wrote:


>An example using native parallel port (Decimal address = 88, 
>therefore Hex address 378) to send bytes to a NeuroScan system using 
>Hex notation (&H...), which would appear in NeuroScan .cnt file as 
>trigger codes 1 to 10:
>
>' assess item level and send appropriate trigger code to NuAmps
>If c.GetAttrib ("numobs") = 1 then
>                 WritePort &H378, &H1
>
>         elseif c.GetAttrib ("numobs") = 2 then
>                 WritePort &H378, &H2
>
>         elseif c.GetAttrib ("numobs") = 3 then
>                 WritePort &H378, &H3
>
>         elseif c.GetAttrib ("numobs") = 4 then
>                 WritePort &H378, &H4
>
>         elseif c.GetAttrib ("numobs") = 5 then
>                 WritePort &H378, &H5
>
>         elseif c.GetAttrib ("numobs") = 6 then
>                 WritePort &H378, &H6
>
>         elseif c.GetAttrib ("numobs") = 7 then
>                 WritePort &H378, &H7
>
>         elseif c.GetAttrib ("numobs") = 8 then
>                 WritePort &H378, &H8
>
>         elseif c.GetAttrib ("numobs") = 9 then
>                 WritePort &H378, &H9
>
>         elseif c.GetAttrib ("numobs") = 10 then
>                 WritePort &H378, &HA
>End If
>
>... here is a conversion tool:
>
>http://easycalculation.com/hex-converter.php
>
>At 12:23 PM 7/02/2013, you wrote:
>>Hi All,
>>
>>I am using inline code (WritePort) in Eprime2 to send triggers from 
>>the test computer to an EEG computer.
>>
>>I would like to add a label to each trigger that specifies what 
>>type of trial that specific trigger is associated with (there are 
>>several levels to several variables). Does anyone have any insight 
>>for how I might go about doing this?
>>
>>Thank you in advance!
>>M
>>
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>
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