Perception Mechanism of Bone-Conducted Ultrasound and Its Clinical Use

被引:4
作者
Nishimura, Tadashi [1 ]
Okayasu, Tadao [1 ]
Yamashita, Akinori [1 ]
Hosoi, Hiroshi [2 ]
Kitahara, Tadashi [1 ]
机构
[1] Nara Med Univ, Dept Otolaryngol Head & Neck Surg, 840 Shijo Cho, Kashihara, Nara 6348522, Japan
[2] Nara Med Univ, MBT Inst, 840 Shijo Cho, Kashihara, Nara 6348522, Japan
关键词
bone conduction; ultrasound; ultrasonic perception; high frequency sound; profound deaf; tinnitus; AUDITORY-CORTEX; INTELLIGIBILITY; FREQUENCY; DURATION; MASKER; N1M;
D O I
10.3390/audiolres11020022
中图分类号
R36 [病理学]; R76 [耳鼻咽喉科学];
学科分类号
100104 ; 100213 ;
摘要
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.
引用
收藏
页码:244 / 253
页数:10
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