声组织学检查 粘膜波和振动
Hye Rhyn Chung1, Neha K Reddy1, Daniel Manzoor2
1David Geffen School of Medicine, University of California, Los Angeles, California, USA.
The Laryngoscope
|July 31, 2023
概括
狗的声振动模式非常模仿人类模型,这表明多层的Lamina Propria对于类似人类的语音产生并不必不可少. 这一发现推动了我们对声生物力学的理解.
科学领域:
- 生物力学 生物力学
- 声生理学 声生理学
- 比较解剖学的比较解剖学
背景情况:
- 人类和狗的声表现出严重的解剖学和组织学差异.
- 之前的研究已经描述了物种之间类似的声振动 (VF) 波形状,但这些需要进一步描述.
研究的目的:
- 在体内重建和分析狗的声振动.
- 为了比较狗的VF振动模式与人类模型.
- 探索特定解剖结构在声振动中的作用.
主要方法:
- 在不同肌肉激活下,对玻璃镜进行体内犬的耳鼻声测试.
- 振动的高速视频捕捉和VF中间表面上纹身地标的3D重建.
- 实证自身函数方法的应用,以分析振动动力学和对犬类半喉的组织学检查.
主要成果:
- 狗和人类的ex vivo声振荡模式非常相似.
- 两个主要的自身函数占运动变异的90%以上,代表开放/关闭和收/分歧模式.
- 观察到垂直相位差异,在打开时比关闭时的时间延迟更大;狗的VF组织学揭示了更厚的自身层和明显的肌肉纤维图案.
结论:
- 狗的声组织结构和振动与人类模式保持一致,尽管有微观结构的变化.
- 多层的Lamina Propria可能不是产生类似人类声音的基本要求.
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