20603 骨導入力音の伝達経路の解明(OS9 バイオエンジニアリング)

概要

論文の詳細を見る
When a bone is vibrated by a vibrator, we can perceive a sound even if conductive hearing loss exists. The applied vibration is supposed to be transmitted to the cochlea through the temporal bone, and this path is called bone-conduction. However, the real paths of the vibration have not been clarified. In this study, loudness of the sound perceived by a subject and the sound pressure generated in the external ear canal were measured when the mastoid was vibrated by a piezoelectric vibrator. The vibration applied to the mastoid was found to generate sound pressure in the external ear canal, the level of which was nearly equal to the perceived sound level. This result suggests that a subject with normal middle ear perceives the airconducted sound through the middle ear particularly at low frequency.
社団法人日本機械学会の論文
2005-03-17