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Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use

It is generally believed that ultrasound cannot be heard. However, ultrasound is audible when it is presented through bone conduction. Bone-conducted ultrasound (BCU) has unique characteristics; the most interesting is its perception in patients with profound deafness. Some patients can perceive it...

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Autores principales: Nishimura, Tadashi, Okayasu, Tadao, Yamashita, Akinori, Hosoi, Hiroshi, Kitahara, Tadashi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261637/
https://www.ncbi.nlm.nih.gov/pubmed/34070877
http://dx.doi.org/10.3390/audiolres11020022
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author Nishimura, Tadashi
Okayasu, Tadao
Yamashita, Akinori
Hosoi, Hiroshi
Kitahara, Tadashi
author_facet Nishimura, Tadashi
Okayasu, Tadao
Yamashita, Akinori
Hosoi, Hiroshi
Kitahara, Tadashi
author_sort Nishimura, Tadashi
collection PubMed
description It is generally believed that ultrasound cannot be heard. However, ultrasound is audible when it is presented through bone conduction. Bone-conducted ultrasound (BCU) has unique characteristics; the most interesting is its perception in patients with profound deafness. Some patients can perceive it and discriminate speech-modulated BCU. Previous reports have suggested that BCU can be used for a hearing aid or tinnitus sound therapy. In this review, the perception of BCU at both the peripheral and central levels was investigated based on previous studies, although some of them remain controversial. We also investigated the clinical use of BCU. To develop hearing aids utilizing BCU, the encoding of speech signals into BCU has to be established. The outcomes of the reported speech modulations were evaluated. Furthermore, the suppression of tinnitus by BCU was reviewed, and the feasibility of the application of BCU to tinnitus treatment was investigated.
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spelling pubmed-82616372021-07-08 Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use Nishimura, Tadashi Okayasu, Tadao Yamashita, Akinori Hosoi, Hiroshi Kitahara, Tadashi Audiol Res Review It is generally believed that ultrasound cannot be heard. However, ultrasound is audible when it is presented through bone conduction. Bone-conducted ultrasound (BCU) has unique characteristics; the most interesting is its perception in patients with profound deafness. Some patients can perceive it and discriminate speech-modulated BCU. Previous reports have suggested that BCU can be used for a hearing aid or tinnitus sound therapy. In this review, the perception of BCU at both the peripheral and central levels was investigated based on previous studies, although some of them remain controversial. We also investigated the clinical use of BCU. To develop hearing aids utilizing BCU, the encoding of speech signals into BCU has to be established. The outcomes of the reported speech modulations were evaluated. Furthermore, the suppression of tinnitus by BCU was reviewed, and the feasibility of the application of BCU to tinnitus treatment was investigated. MDPI 2021-05-30 /pmc/articles/PMC8261637/ /pubmed/34070877 http://dx.doi.org/10.3390/audiolres11020022 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Nishimura, Tadashi
Okayasu, Tadao
Yamashita, Akinori
Hosoi, Hiroshi
Kitahara, Tadashi
Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title_full Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title_fullStr Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title_full_unstemmed Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title_short Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use
title_sort perception mechanism of bone-conducted ultrasound and its clinical use
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261637/
https://www.ncbi.nlm.nih.gov/pubmed/34070877
http://dx.doi.org/10.3390/audiolres11020022
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