<div dir="auto"><div>Hello Alexandre,</div><div dir="auto"><br><div dir="auto">Spatial ica regularly and easily detects eye artifact ICs, with or without EOG channels. Thats because eye artifact patterns are picked up at frontal electrodes. </div><div dir="auto"><br></div><div dir="auto">My recommendation is to try your ocular Ic detection in several ways. With 32 channels you should easily be able to capture ocular ICs as well some other classes of artifact ICs.</div><div dir="auto"><br></div><div dir="auto">Do note that some ica classification algorithms request eog electrodes, or channels that can be treated as if they were eye channels.</div><div dir="auto"><br></div><br><div class="gmail_extra" dir="auto"><br><div class="gmail_quote">On Mar 6, 2018 12:38 PM, "Alexandre Obert" <<a href="mailto:obert.alexandre@gmail.com">obert.alexandre@gmail.com</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear all, <div><br></div><div>I'm interested in ICA process to deal with ocular artifacts in an ERP study. </div><div>However I have some doubt about the best electrodes montage : when using a 32 channels montage, is this necessary to set EOG electrodes (we previously used this approach by derivating some electrodes) or ICA detection/rejection algorithms (eg ADJUST) can deal without EOG electrodes? </div><div><br></div><div>Regards, </div><font color="#888888"><div><br></div><div>Alexandre</div></font></div>
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