{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T13:55:10Z","timestamp":1772114110586,"version":"3.50.1"},"reference-count":49,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,19]],"date-time":"2024-06-19T00:00:00Z","timestamp":1718755200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100019125","name":"Sorbonne University","doi-asserted-by":"publisher","award":["S21LRPV037"],"award-info":[{"award-number":["S21LRPV037"]}],"id":[{"id":"10.13039\/501100019125","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100019125","name":"Sorbonne University","doi-asserted-by":"publisher","award":["AUDIBLE"],"award-info":[{"award-number":["AUDIBLE"]}],"id":[{"id":"10.13039\/501100019125","id-type":"DOI","asserted-by":"publisher"}]},{"name":"BPI France","award":["S21LRPV037"],"award-info":[{"award-number":["S21LRPV037"]}]},{"name":"BPI France","award":["AUDIBLE"],"award-info":[{"award-number":["AUDIBLE"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Wearable in-ear electroencephalographic (EEG) devices hold significant promise for advancing brain monitoring technologies into everyday applications. However, despite the current availability of several in-ear EEG devices in the market, there remains a critical need for robust validation against established clinical-grade systems. In this study, we carried out a detailed examination of the signal performance of a mobile in-ear EEG device from Naox Technologies. Our investigation had two main goals: firstly, evaluating the hardware circuit\u2019s reliability through simulated EEG signal experiments and, secondly, conducting a thorough comparison between the in-ear EEG device and gold-standard EEG monitoring equipment. This comparison assesses correlation coefficients with recognized physiological patterns during wakefulness and sleep, including alpha rhythms, eye artifacts, slow waves, spindles, and sleep stages. Our findings support the feasibility of using this in-ear EEG device for brain activity monitoring, particularly in scenarios requiring enhanced comfort and user-friendliness in various clinical and research settings.<\/jats:p>","DOI":"10.3390\/s24123973","type":"journal-article","created":{"date-parts":[[2024,6,19]],"date-time":"2024-06-19T08:06:06Z","timestamp":1718784366000},"page":"3973","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Evaluating the Electroencephalographic Signal Quality of an In-Ear Wearable Device"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-6545-3481","authenticated-orcid":false,"given":"Jeremy","family":"Pazuelo","sequence":"first","affiliation":[{"name":"Laboratoire d\u2019Imagerie Biom\u00e9dicale (LIB) Inserm U1146, Sorbonne Universit\u00e9, UMR7371 CNRS, 15 Rue de l\u2019Ecole de Medecine, 75006 Paris, France"}]},{"given":"Jose Yesith","family":"Juez","sequence":"additional","affiliation":[{"name":"Laboratoire d\u2019Imagerie Biom\u00e9dicale (LIB) Inserm U1146, Sorbonne Universit\u00e9, UMR7371 CNRS, 15 Rue de l\u2019Ecole de Medecine, 75006 Paris, France"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4167-6018","authenticated-orcid":false,"given":"Hanane","family":"Moumane","sequence":"additional","affiliation":[{"name":"Laboratoire d\u2019Imagerie Biom\u00e9dicale (LIB) Inserm U1146, Sorbonne Universit\u00e9, UMR7371 CNRS, 15 Rue de l\u2019Ecole de Medecine, 75006 Paris, France"}]},{"given":"Jan","family":"Pyrzowski","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine, Medical Unversity of Gda\u0144sk, 80-214 Gda\u0144sk, Poland"}]},{"given":"Liliana","family":"Mayor","sequence":"additional","affiliation":[{"name":"ONIROS SAS\u2013Comprehensive Sleep Care Center, Bogot\u00e1 110221, Colombia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7757-1432","authenticated-orcid":false,"given":"Fredy Enrique","family":"Segura-Quijano","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Engineering, University of Los Andes, Bogot\u00e1 111711, Colombia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8791-6078","authenticated-orcid":false,"given":"Mario","family":"Valderrama","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Universidad de Los Andes, Bogot\u00e1 111711, Colombia"}]},{"given":"Michel","family":"Le Van Quyen","sequence":"additional","affiliation":[{"name":"Laboratoire d\u2019Imagerie Biom\u00e9dicale (LIB) Inserm U1146, Sorbonne Universit\u00e9, UMR7371 CNRS, 15 Rue de l\u2019Ecole de Medecine, 75006 Paris, France"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"051002","DOI":"10.1088\/1741-2552\/acfcda","article-title":"The future of wearable EEG: A review of ear-EEG technology and its applications","volume":"20","author":"Kaongoen","year":"2023","journal-title":"J. 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