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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My 2 cents worth:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Because of the geodesic (and in general spherical) layout of the electrodes, there is a very nice spatial down-sampling from 256 to 64, or from 128 to 32 (that
is by a factor of 4). Going from 256 to 128 is problematic spatially. If possible I suggest spatially interpolating the 256 channel data to the exact 128 channel locations.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-Jeff Eriksen<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> eeglablist [mailto:eeglablist-bounces@sccn.ucsd.edu]
<b>On Behalf Of </b>Tarik S Bel-Bahar<br>
<b>Sent:</b> Sunday, July 16, 2017 2:19 PM<br>
<b>To:</b> eeglablist<br>
<b>Cc:</b> Support Team<br>
<b>Subject:</b> [Eeglablist] EGI 256 to 128 channels ?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#333399">Greetings,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#333399">Does anyone have (or know of) a list of which EGI 256 hydrocel channels
<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#333399">that match up with the EGI 128 hydrocel channels ?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#333399">We're basically looking for the best possible match,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#333399">and a list of which channels from the 256 layout to keep<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#333399">in order to get as close as possible to the 128 channel layout.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#333399">Thanks very much for any info that is available!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#333399">PS. we are doing this somewhat manually/visually at this time,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#333399">and we already have access to the 10-10 correspondences tech note from EGI.<br>
<br>
<o:p></o:p></span></p>
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