"龙巴德效应"和声音变化在吸收器喉 dystonia:一个试点研究
Maria Raffaella Marchese1, Ylenia Longobardi1, Rosa Libero1
1Unità Operativa Complessa di Otorinolaringoiatria, Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
The Laryngoscope
|May 10, 2024
概括
伦巴德效应 (LE) 通过增强声学和主观参数,改善了 adductor喉 dystonia (AdLD) 患者的语音质量. 这表明听觉反在AdLD中起着作用,可能为新疗法提供信息.
科学领域:
- 喉腔病理学 喉腔病理学
- 语音和声音科学 语音和声音科学
- 神经学 神经学
背景情况:
- 诱导性喉 dystonia (AdLD) 是一种声音障碍,其特点是喉中的非自愿肌肉.
- 伦巴德效应 (Lombard effect,简称LE) 是一种现象,说话者在杂的环境中无意识地增加了他们的声音强度.
- 了解LE如何影响ADLD患者的声音,可以提供有关声控机制和治疗策略的见解.
研究的目的:
- 研究伦巴德效应 (LE) 对附加器喉 dystonia (AdLD) 患者的声学,听觉感知和主观语音参数的影响.
- 为了比较AdLD患者在LE下的声音变化与典型声音的个体.
主要方法:
- 在正常和LE条件下,十名AdLD患者和十名对照人产生持续的元音,并大声读出文本.
- 评估了声力 (OMNI声力量表),最大发音时间 (MPT) 和失声严重程度 (GRBAS量表).
- 使用PRAAT软件进行的声学分析包括平均音调,强度,局部未发声的部分,语音间歇和Cepstral Peak Prominence-Smoothed (CPPS).
主要成果:
- 在L.E.下,AdLD患者在GRBAS得分 (G和S参数) 中显著改善,主观声乐努力降低.
- 在LE期间,AdLD患者的最大声调时间 (MPT) 显著增加,对照组没有显著变化.
- 这两组在LE下表现出更高的音调和强度,但在AdLD组中,主观努力和语音参数的变化幅度更大.
结论:
- 通过LE模拟的听觉反剥夺似乎有利于AdLD中的主观,感知和声学语音参数.
- 这些发现凸显了听觉系统在ADLD病变发生过程中的关键作用.
- 对LE和听觉反机制的进一步研究可能会导致AdLD的新治疗干预措施.
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