<div dir="ltr">Dear Heiko,<div><br></div><div>Sorry for belated response.</div><div>Hmm with only two channels there is not much reasonable solutions.</div><div>clean_rawdata() uses assumptions of channel locations and power-spectrum density at some points, so I wonder if it is valid to use it here. It uses PCA anyway, so having only two channel makes it less convincing solution (so is ICA).</div><div><br></div><div>Perhaps there are ways to remove artifacts and noises in the time domain (using AR model etc), but I don't know these techniques very well. We always take advantage of data being multivariate.</div><div><br></div><div>Makoto</div><div><br></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 14, 2017 at 5:54 AM, Kaiser, Heiko <span dir="ltr"><<a href="mailto:Heiko.Kaiser@insel.ch" target="_blank">Heiko.Kaiser@insel.ch</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">







<div bgcolor="white" lang="EN-GB" link="blue" vlink="purple">
<div class="m_1463230313115488524m_-8480089589139430431WordSection1">
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">Dear all<u></u><u></u></span></p>
<div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial"> <u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">We recorded approximately 500 intraoperative EEGs during cardiac surgery at 128Hz, two frontal channels only.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">As expected, we do have quite some artefacts, especially from surgical cautery.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">Does anyone know a good approach to filter this electrical noise with eeglab?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">Any advice would be greatly appreciated.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">Thanks, and best regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Arial">Heiko<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"> </span><span style="font-size:10.0pt;font-family:Arial"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri;color:black"> </span><span style="font-size:10.0pt;font-family:Arial"><u></u><u></u></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri;color:black">------------------------------<wbr>--------------<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri;color:black">Heiko Kaiser, MD, DESA<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri;color:black">Division of Cardiovascular Anesthesia<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri;color:black">Dept. of Anesthesiology and Pain Therapy<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:11.0pt;font-family:Calibri;color:black">University Hospital Bern, Inselspital<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:11.0pt;font-family:Calibri;color:black">Freiburgstrasse, 3010 Bern, Switzerland <u></u><u></u></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></p>
</div>
</div>
</div>

<br>______________________________<wbr>_________________<br>
Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" rel="noreferrer" target="_blank">http://sccn.ucsd.edu/eeglab/ee<wbr>glabmail.html</a><br>
To unsubscribe, send an empty email to <a href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" target="_blank">eeglablist-unsubscribe@sccn.uc<wbr>sd.edu</a><br>
For digest mode, send an email with the subject "set digest mime" to <a href="mailto:eeglablist-request@sccn.ucsd.edu" target="_blank">eeglablist-request@sccn.ucsd.e<wbr>du</a><br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="m_1463230313115488524gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div></div>
</div></div>