<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="orphans: 2; widows: 2;" class=""><font color="#222222" face="Arial, Helvetica, sans-serif" size="2" class=""><span style="caret-color: rgb(34, 34, 34); background-color: rgb(255, 255, 255);" class="">Hi,</span></font></div><span style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">I performed preprocessing steps of my eegdata (Epoc+) using EEGLAB.</span><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">As channel configurations, I considered a specific .ced file for Epoc+ and in EEGLAB I visualized the correct position of sensors in 2D plot.</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">When I use FieldTrip for the spectral analysis, I imported the .set file.</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class=""><span style="font-family: Courier; font-size: 10px;" class="">cfg = [];</span></div><div style="font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; margin: 0px; color: rgb(160, 32, 240);" class=""><span style="color: rgb(0, 0, 0);" class="">cfg.dataset = </span>'MyDataset.set'<span style="color: rgb(0, 0, 0);" class="">;</span></div><div style="color: rgb(34, 34, 34); font-stretch: normal; font-size: 10px; line-height: normal; font-family: Courier; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; margin: 0px;" class="">data_eeg = ft_preprocessing(cfg)</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class=""><br class=""></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">When I visualize the result of ft_topoplotER, the configuration of sensors is <span class="il">rotated</span>.</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">In particular, the sensors O1 and O2 are on the left ear and nose on the right ear.</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">When I fix this problem?</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;" class="">Thanks a lot for your help</div></body></html>