<div dir="ltr">Dear Nike,<div><br></div><div>Unfortunately I can answer to only one of your questions.</div><div><br></div><div><div>> 3. Is using monopolar channels for EOG better than using bipolar channels.</div></div><div><br></div><div>Yes definitely.</div><div><br></div><div>Makoto</div><div><br></div><div class="gmail_extra"><div class="gmail_quote">On Sun, Nov 16, 2014 at 11:12 PM, Nike gnanateja <span dir="ltr"><<a href="mailto:nikegnanateja@gmail.com" target="_blank">nikegnanateja@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">Dear list, <div><br></div><div>We are using a Neuroscan 64 channel Synamps2 equipment at our lab. We use bipolar channels for the EOG recordings. When I import the recordings into eeglab and try to load the electrode locations from the existing sample locations, it assigns a single location to the bipolar channel. But actually, they are from two differential electrodes.</div><div><br></div><div>Here are myquestions</div><div>1. how do I add a separate reference channel to the EOG Bipolar channel?</div><div><br></div><div>2. Does addition of a separate reference channel to the EOG electrodes actually matter? What I have visually observed is that the scalp topography of the eye movements are falsely lateralized, and the actual dipolar nature of the horizontal movements not clearly visualized in the EOG channels </div><div><br></div><div>3. Is using monopolar channels for EOG better than using bipolar channels.</div><div><br></div><div><br></div><div>regards</div><span class=""><font color="#888888"><div>Nike<br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><font color="#6633ff" face="georgia,serif"><a href="http://goog_636235333" target="_blank">G Nike Gnanateja, MSc (Audiology)</a></font></div><div><font color="#6633ff" face="georgia,serif">Junior Research Fellow,</font></div><div><font color="#6633ff" face="georgia,serif">Department of Audiology, </font></div><div><font color="#6633ff" face="georgia,serif">All India Institute of Speech</font></div><div><font color="#6633ff" face="georgia,serif">and Hearing Mysore-06</font></div></div></div>
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