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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Hey Nick,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Thank you for the help! I actually managed to configure it using that port after I read this. I have figured out my issue lies within my unit.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Much appreciated again!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Ryan <o:p>
</o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> fieldtrip-bounces@science.ru.nl [mailto:fieldtrip-bounces@science.ru.nl]
<b>On Behalf Of </b>Balderston, Nicholas (NIH/NIMH) [F]<br>
<b>Sent:</b> June 15, 2016 1:14 AM<br>
<b>To:</b> FieldTrip discussion list <fieldtrip@science.ru.nl><br>
<b>Subject:</b> Re: [FieldTrip] SEP Recording<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">Hey Ryan,
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">I am not sure that I understand your problem completely, so this solution might not be that helpful. That being said, the DS7A has a BNC out port on the back of
the unit, which sends its own TTL pulses whenever it delivers a stimulation. If you can add this as a channel in your recordings, it may give you more accurate timing information. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">-nick<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"> RYAN GILLEY [rgilley@deakin.edu.au]<br>
<b>Sent:</b> Tuesday, June 14, 2016 12:13 AM<br>
<b>To:</b> <a href="mailto:fieldtrip@tortel.science.ru.nl">fieldtrip@tortel.science.ru.nl</a><br>
<b>Subject:</b> [FieldTrip] SEP Recording</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hi Everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">This is not a straight forward question for Fieldtrip but with the experience in the group I figured it would be good to ask.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Currently I am using a Neuroscan 64 channel EEG system to acquire sensory evoked potential (SEP) data. I am administering TTL pulses from an external system (Digitimer DS7a) run through Powerlab 26T using Labchart’s
event manager to generate the stimulations. My goal is to attempt to localize a couple of the Somatosensory peaks. My problem at the moment is that on my recording the marker (spike 1) and the stimulus artifact show up as displayed below. I have found that
the time interval is inconsistent and because of this I am having trouble aligning the stimulus artifact to average.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Is there another way of configuring this so that it works more efficiently or if anyone has used these tools (digitimer and powerlab) with the neuroscan system before, is there any advice anyone can give.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Thanks in advance,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Ryan<o:p></o:p></span></p>
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