刺激音響誘発耳音響放射を用いた気骨導伝達特性の比較
Jie Wang1, Zhuoran Shi1, Shengjian Wu1
1School of Electronics and Communication Engineering, Guangzhou University, Guangzhou, China.
The Journal of the Acoustical Society of America
|January 13, 2026
まとめ
本研究では、刺激音響誘発耳音響放射(SFOAE)を用いた骨気導差伝達特性(BADTP)の測定のための新しい客観的方法を導入する。この技術は、骨導聴覚感度を評価するための信頼できる方法を提供する。
科学分野:
- 聴覚学
- 耳音響放射
- 聴覚科学
背景:
- 耳音響放射(OAE)は、聴覚刺激の調査に不可欠な蝸牛応答である。
- 気導(AC)および骨導(BC)伝達は、聴覚の重要な側面である。
- 客観的聴覚測定は、聴覚メカニズムの理解に価値がある。
研究 の 目的:
- 骨気導差伝達特性(BADTP)を測定するための、非侵襲的で客観的な方法を開発および検証すること。
- 刺激音響誘発耳音響放射(SFOAE)を用いて、AC伝達とBC伝達の感度差を評価すること。
- 客観的BADTP測定と主観的聴覚閾値を比較すること。
主な方法:
- BADTPを決定するためにSFOAEを利用した客観的な方法を開発した。
- BADTPをACおよびBC伝達特性間の差として定義した。
- 1000–4000 Hzの範囲で、10人の正常聴力を持つ個人におけるBADTPと主観的聴覚閾値を比較することにより、客観的方法をクロスバリデーションした。
主要な成果:
- SFOAEベースのBADTP測定は、1000–1600 Hzで主観的閾値(2 dB以内)と密接に一致した。
- 客観的および主観的両方の方法で、1850–4000 Hzの聴覚感度の類似した傾向が示された。
- 本研究は、客観的BADTP評価のためのSFOAEの使用の実現可能性を検証した。
結論:
- 提案されたSFOAEベースの方法は、骨導伝達に関する貴重な洞察を提供する。
- この客観的なアプローチは、BC機能評価を必要とする研究設定に潜在的な応用がある。
- 本研究の結果は、客観的な聴覚評価のためのOAEの使用を支持する。
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