<p><span style="padding: 3px 10px; border-radius: 5px; color: #ffffff; font-weight: bold; display: inline-block; background-color: #ff0000;"> External Email - Use Caution </span></p><p></p><div dir="ltr">hi,<div><br></div><div>I confirm that EOG channel is not necessary when you apply existing projections.</div><div><br></div><div>Alex</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 3, 2021 at 8:58 AM Scheltienne Mathieu <<a href="mailto:mathieu.scheltienne@epfl.ch" target="_blank">mathieu.scheltienne@epfl.ch</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="en-CH"><p><span style="padding:3px 10px;border-radius:5px;color:rgb(255,255,255);font-weight:bold;display:inline-block;background-color:rgb(255,0,0)"> External Email - Use Caution </span></p><p></p>
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<p class="MsoNormal"><span lang="EN-US">Hello MNE community,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">I am computing EOG projectors with mne.preprocessing.compute_proj_eog(). Prior to this, the preprocessing includes:<u></u><u></u></span></p>
<ul style="margin-top:0cm" type="disc">
<li style="margin-left:0cm"><span lang="EN-US">Removing bad channels, applying CAR ref<u></u><u></u></span></li><li style="margin-left:0cm"><span lang="EN-US">BP filter [1, 100] Hz<u></u><u></u></span></li><li style="margin-left:0cm"><span lang="EN-US">Powerline noise notch filter on EOG channel (EEG channel doesn’t have powerline noise thanks to the CAR)<u></u><u></u></span></li></ul>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">After I get the projectors, I save them to disk.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">To re-use those projectors on another recording, performed a few minutes later after the first one on the same participant, do I need the EOG channel? i.e. do I need to preprocess the EOG channel before applying the loaded
projectors?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">My understanding is that I do not need the EOG channel anymore, could you confirm this?<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Mathieu<u></u><u></u></span></p>
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