<div dir="ltr">Dear Clemens,<div><br></div><div><blockquote type="cite"><div style="word-wrap:break-word">>the EOG channels do not seem to add substantially  more information with regards to blink occurrences. </div></blockquote></div><div class="gmail_extra">I agree with you. My understanding is that ICA captures blinks so easily that even without EOG channels it can do the job perfectly. I compared 33ch vs. reduced-to-3ch data (the latter contains the same Fz, Cz, and Pz of the former) and run ICA separately. In both decompositions, the first IC was eye blink, and their ERPimages were identical (except for scale)!</div><div class="gmail_extra"><br></div><div class="gmail_extra">Makoto</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 8, 2015 at 12:40 AM, Clemens DICKHUT <span dir="ltr"><<a href="mailto:clemens.dickhut@uni.lu" target="_blank">clemens.dickhut@uni.lu</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">



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Dear EEG experts, 
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<div>I am going to record EEG using a 64 channel ActiCap. Additionally, I could use bipolar channels to keep track of (V/H)EOG. These would not have a common reference with the scalp electrodes. After running several pilot tests with and without EOG,
 the EOG channels do not seem to add substantially  more information with regards to blink occurrences. Frontal scalp electrodes seem to identify these reliably as well. </div>
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<div>As the ICA in my case is based on only scalp electrodes, would you regard it as o.k. practice recording the EEG without further EOG underpinning? </div>
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<div>What are your experiences? I am happy to hear from you guys. </div>
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<div>Best, </div>
<div>Clemens <br>
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  P.S.: in case of double post, sorry, but I think my first request did not get through. </div>
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Clemens Dickhut, M.Sc., (PhD Student) <br>
Institute for Health and Behaviour<br>
Research Unit INSIDE<br>
University of Luxembourg - Campus Belval<br>
Maison des Sciences Humaines<br>
11, Porte des Sciences, R. 04 415<br>
L-4366 Esch-sur-Alzette</div>
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Tel.: <a href="tel:%28%2B352%29%2046%2066%2044%209536" value="+3524666449536" target="_blank">(+352) 46 66 44 9536</a><br>
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