Labeling EEG Triggers
Melaina Vinski
mtvinski at gmail.com
Fri Feb 8 03:40:58 UTC 2013
Thank you for your insights Peter!
On Thu, Feb 7, 2013 at 4:50 PM, Peter Quain <pquain at une.edu.au> wrote:
>
> I've never used serial device. Sure, you can write to it, but I think *
> what* you write will depend on how your EEG system is designed to receive
> event information (detailed in its manual?). Others who know these things
> will have to help.
>
> Maybe look in e-basic help, for "SerialDevice Object (topic)"
>
> Or search this group for serial port ... here is a post by David
> McFarlane, for example, who obviously knows of these things:
>
> https://www.pstnet.com/forum/Topic4793-8-1.aspx#bm4801
>
> A couple of examples from google search of e-prime code to interface with
> different external systems through serial port:
>
> http://www.mindmedia.nl/CMS/en/support/knowledge-base/item/272-how-to-run-an-e-prime-project-by-using-the-nti.html
>
> http://www.cedrus.com/support/stimtracker/tn1411_eprime.htm
>
> good luck
>
>
>
> At 01:11 AM 8/02/2013, you wrote:
>
> Thank you for your quick reply! We are using a serial port - do these
> instructions follow for serial ports as well?
>
> Also, if I want to include more than 1 condition to label the trigger (so
> not just "numbos", but also "type" for example), would I be okay with using:
>
> elseif c.GetAttrib ("numobs") = 10
> and c.GetAttrib ("type") = 3 then
> WritePort &H378, &HA
>
> Thank you kindly in advance - I appreciate the help!
>
> M
>
>
>
>
> On Wed, Feb 6, 2013 at 8:42 PM, Alphonse Stickle <alphonse.stickle at gmail.com>
> wrote:
>
> .. 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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> --
> Melaina T. Vinski
> MSc Candidate
> Psychology, Neuroscience & Behavior
> Cognitive Sciences Lab
> McMaster University
> 905-525-9140 ext. 22853
>
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--
Melaina T. Vinski
MSc Candidate
Psychology, Neuroscience & Behavior
Cognitive Sciences Lab
McMaster University
905-525-9140 ext. 22853
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