Tongue interface based on surface EMG signals of suprahyoid muscles

Conference paper


Sasaki, M., Onishi, K., Stefanov, D., Kamata, K., Nakayama, A., Yoshikawa, M. and Obinata, G. 2016. Tongue interface based on surface EMG signals of suprahyoid muscles. Springer Open. https://doi.org/10.1186/s40648-016-0048-0
TypeConference paper
TitleTongue interface based on surface EMG signals of suprahyoid muscles
AuthorsSasaki, M., Onishi, K., Stefanov, D., Kamata, K., Nakayama, A., Yoshikawa, M. and Obinata, G.
Abstract

The research described herein was undertaken to develop and test a novel tongue interface based on classification of tongue motions from the surface electromyography (EMG) signals of the suprahyoid muscles detected at the underside of the jaw. The EMG signals are measured via 22 active surface electrodes mounted onto a special flexible boomerang-shaped base. Because of the sensor’s shape and flexibility, it can adapt to the underjaw skin contour. Tongue motion classification was achieved using a support vector machine (SVM) algorithm for pattern recognition where the root mean square (RMS) features and cepstrum coefficients (CC) features of the EMG signals were analyzed. The effectiveness of the approach was verified with a test for the classification of six tongue motions conducted with a group of five healthy adult volunteer subjects who had normal motor tongue functions. Results showed that the system classified all six tongue motions with high accuracy of 95.1 ± 1.9 %. The proposed method for control of assistive devices was evaluated using a test in which a computer simulation model of an electric wheelchair was controlled using six tongue motions. This interface system, which weighs only 13.6 g and which has a simple appearance, requires no installation of any sensor into the mouth cavity. Therefore, it does not hinder user activities such as swallowing, chewing, or talking. The number of tongue motions is sufficient for the control of most assistive devices.

Proceedings TitleRobomech Journal
ISSN2197-4225
PublisherSpringer Open
Publication dates
Online02 Apr 2016
Print31 Dec 2016
Publication process dates
Deposited14 Jun 2019
Accepted01 Mar 2016
Output statusPublished
Publisher's version
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Copyright Statement

© 2016 Sasaki et al. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Additional information

Article number = 9

Digital Object Identifier (DOI)https://doi.org/10.1186/s40648-016-0048-0
LanguageEnglish
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https://repository.mdx.ac.uk/item/8853x

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