<div dir="auto"><div dir="auto"></div>Hi Vera,<div dir="auto"><br></div><div dir="auto">I have faced similar issue when converting EEGLAB dataset to fieldtrip format (using eeglab2fieldtrip) for two different systems.</div><div dir="auto"><br></div><div dir="auto">I use this code (EEGLAB function) to solve this issue before conversion.</div><div dir="auto"><br></div><div dir="auto">EEG = pop_chanedit (EEG, 'nosedir', '-Y');</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto">Samran</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Sat, Feb 20, 2021, 12:00 <<a href="mailto:fieldtrip-request@science.ru.nl" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">fieldtrip-request@science.ru.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send fieldtrip mailing list submissions to<br>
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1. Re: Channels configuration from EEGLAB .set file is rotated<br>
in ft_topoplotER (<a href="mailto:tibor.auer@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">tibor.auer@gmail.com</a>)<br>
<br><br><br>---------- Forwarded message ----------<br>From: <<a href="mailto:tibor.auer@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">tibor.auer@gmail.com</a>><br>To: "'FieldTrip discussion list'" <<a href="mailto:fieldtrip@science.ru.nl" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">fieldtrip@science.ru.nl</a>><br>Cc: <br>Bcc: <br>Date: Fri, 19 Feb 2021 19:42:10 -0000<br>Subject: Re: [FieldTrip] Channels configuration from EEGLAB .set file is rotated in ft_topoplotER<br><div lang="HU" link="#0563C1" vlink="#954F72" style="word-wrap:break-word"><div><p class="MsoNormal"><span lang="EN-GB">Hi Vera,<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB">This is something I also noticed for other systems, as well. I simply rotated it back according to some crude heuristic. See </span><span lang="EN-GB"><a href="https://github.com/automaticanalysis/automaticanalysis/blob/master/extrafunctions/ft_mods/eeglab2fieldtripER.m" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">automaticanalysis/eeglab2fieldtripER.m at master · automaticanalysis/automaticanalysis (github.com)</a>, lines 122-145.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB">Kind regards,<u></u><u></u></span></p><div><p class="MsoNormal"><span lang="EN-GB">Tibor <u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><p class="MsoNormal"><b><span lang="EN-GB" style="color:#222a35">Auer, Tibor M.D. Ph.D.<u></u><u></u></span></b></p><p class="MsoNormal"><b><span lang="EN-GB" style="color:#0066ff">Research Fellow<u></u><u></u></span></b></p><p class="MsoNormal"><b><span lang="EN-GB" style="color:#0066ff">School of Psychology, Faculty of Health and Medical Sciences</span></b><span lang="EN-GB" style="color:#0066ff"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB">University of Surrey, Guildford GU2 7XH<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB"><a href="mailto:T.Auer@surrey.ac.uk" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank"><span style="color:#0563c1">T.Auer@surrey.ac.uk</span></a><u><span style="color:#0563c1"><u></u><u></u></span></u></span></p><p class="MsoNormal"><span lang="EN-GB"><a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftwitter.com%2FTiborAuer&data=02%7C01%7Ct.auer%40surrey.ac.uk%7Cdb32da458c424eedef2908d7d4bd1421%7C6b902693107440aa9e21d89446a2ebb5%7C0%7C0%7C637211780868086968&sdata=zrT5%2FnGGsar14C3WartuU99tzsfLu30Peh9fuaqrAUg%3D&reserved=0" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank"><span style="color:#0563c1">@TiborAuer</span></a><u></u><u></u></span></p></div><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-GB">From:</span></b><span lang="EN-GB"> fieldtrip <<a href="mailto:fieldtrip-bounces@science.ru.nl" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">fieldtrip-bounces@science.ru.nl</a>> <b>On Behalf Of </b>Vera Gramigna<br><b>Sent:</b> Thursday, February 18, 2021 5:44 PM<br><b>To:</b> <a href="mailto:fieldtrip@science.ru.nl" rel="noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">fieldtrip@science.ru.nl</a><br><b>Subject:</b> [FieldTrip] Channels configuration from EEGLAB .set file is rotated in ft_topoplotER<u></u><u></u></span></p></div></div><p class="MsoNormal"><span lang="EN-GB"><u></u> <u></u></span></p><div><p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222;background:white">Hi,</span><span lang="EN-GB"><u></u><u></u></span></p></div><p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222;background:white">I performed preprocessing steps of my eegdata (Epoc+) using EEGLAB.</span><span lang="EN-GB"><u></u><u></u></span></p><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">As channel configurations, I considered a specific .ced file for Epoc+ and in EEGLAB I visualized the correct position of sensors in 2D plot.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">When I use FieldTrip for the spectral analysis, I imported the .set file.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:#222222">cfg = [];</span><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222"><u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:black">cfg.dataset = </span><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:#a020f0">'MyDataset.set'</span><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:black">;</span><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:#a020f0"><u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:7.5pt;font-family:Courier;color:#222222">data_eeg = ft_preprocessing(cfg)<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222"><u></u> <u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">When I visualize the result of ft_topoplotER, the configuration of sensors is <span>rotated</span>.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">In particular, the sensors O1 and O2 are on the left ear and nose on the right ear.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">When I fix this problem?<u></u><u></u></span></p></div><div><p class="MsoNormal" style="background:white"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#222222">Thanks a lot for your help<u></u><u></u></span></p></div></div></div>_______________________________________________<br>
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<a href="https://doi.org/10.1371/journal.pcbi.1002202" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer" target="_blank">https://doi.org/10.1371/journal.pcbi.1002202</a><br>
</blockquote></div></div></div>