Hello Estelle,<br><br>A good place to start would be to look in the literature for studies similar to yours and see what reference they use. You can also look in Steve Luck's book <i>An Introduction to the Event-Related Potential Technique </i>(2005), which has information about choosing a reference electrode.<br>
<br>Best,<br>Steve Politzer-Ahles<br><br><div class="gmail_quote">On Tue, Jan 10, 2012 at 5:24 AM, Estelle Longin <span dir="ltr"><<a href="mailto:estellelongin@gmail.com">estellelongin@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><font face="arial, helvetica, sans-serif">Dear collegues,</font></div><div><font face="arial, helvetica, sans-serif"><br>
</font></div><div><font face="arial, helvetica, sans-serif">I am new in EEG analyses so I apologize if my question seem trivial.</font></div>
<div><font face="arial, helvetica, sans-serif">I am working on data recorded with a 128 high-density cap (BioSemi system); no specific reference electrode was used during the recording.</font></div>
<div><font face="arial, helvetica, sans-serif">I am wondering what is the best reference to choose with the software. I understood that the usual EEG reference selections are 1 electrode on top of the head (Cz), or the average of all connected electrodes... Someone could tell me what these two methods implies, how they differ and if one method is better than the other ?</font></div>
<div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">Thank you in advance.</font></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">Best regards,</font></div>
<span class="HOEnZb"><font color="#888888">
<div><font face="arial, helvetica, sans-serif">Estelle Longin</font></div>
<div><font size="3" face="Times"><br></font></div><div></div>
</font></span></div>
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