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doi:10.22028/D291-42472
Titel: | Assessment of Vestigial Auriculomotor Activity to Acoustic Stimuli Using Electrodes In and Around the Ear |
VerfasserIn: | Schroeer, Andreas Andersen, Martin Rune Rank, Mike Lind Hannemann, Ronny Petersen, Eline Borch Rønne, Filip Marchman Strauss, Daniel J. Corona-Strauss, Farah I. |
Sprache: | Englisch |
Titel: | Trends in hearing |
Bandnummer: | 27 |
Seiten: | 1-16 |
Verlag/Plattform: | Sage |
Erscheinungsjahr: | 2023 |
Freie Schlagwörter: | EMG PAM auricular muscles in-ear |
DDC-Sachgruppe: | 610 Medizin, Gesundheit |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Recently, it has been demonstrated that electromyographic (EMG) activity of auricular muscles in humans, especially the postauricular muscle (PAM), depends on the spatial location of auditory stimuli. This observation has only been shown using wet electrodes placed directly on auricular muscles. To move towards a more applied, out-of-the-laboratory setting, this study aims to investigate if similar results can be obtained using electrodes placed in custom-fitted earpieces. Furthermore, with the exception of the ground electrode, only dry-contact electrodes were used to record EMG signals, which require little to no skin preparation and can therefore be applied extremely fast. In two experiments, auditory stimuli were presented to ten participants from different spatial directions. In experiment 1, stimuli were rapid onset naturalistic stimuli presented in silence, and in experiment 2, the corresponding participant's first name, presented in a "cocktail party" environment. In both experiments, ipsilateral responses were significantly larger than contralateral responses. Furthermore, machine learning models objectively decoded the direction of stimuli significantly above chance level on a single trial basis (PAM: ≈ 80%, in-ear: ≈ 69%). There were no significant differences when participants repeated the experiments after several weeks. This study provides evidence that auricular muscle responses can be recorded reliably using an almost entirely dry-contact in-ear electrode system. The location of the PAM, and the fact that in-ear electrodes can record comparable signals, would make hearing aids interesting devices to record these auricular EMG signals and potentially utilize them as control signals in the future. |
DOI der Erstveröffentlichung: | 10.1177/23312165231200158 |
URL der Erstveröffentlichung: | https://journals.sagepub.com/doi/10.1177/23312165231200158 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-424721 hdl:20.500.11880/38119 http://dx.doi.org/10.22028/D291-42472 |
ISSN: | 2331-2165 |
Datum des Eintrags: | 29-Jul-2024 |
Fakultät: | M - Medizinische Fakultät |
Fachrichtung: | M - Radiologie |
Professur: | M - Keiner Professur zugeordnet |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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10.1177_23312165231200158.pdf | 3,76 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons