OBJECTIVE ASSESSMENT OF VOCAL HYPERFUNCTION

一般认为，“发声机能亢进”是一种潜在的 在大多数声音障碍的组成部分，但有一个缺乏硬 数据涉及：l）特定的生理和声学表现， 声音功能亢进，和2）功能亢进的实际作用， 发展和维持各种声音障碍。 因此，主要 该项目的目标是制定和使用措施，以：l）提供 对被称为“发声机能亢进”的病症的客观描述， 以及2）增加关于在一个特定的环境中的“正常”发声的现有知识， 一种有助于解释功能亢进声音数据的方法 生产 这些目标将通过使用独特的 结合非侵入性获得的间接措施， 描述潜在的生理机制之间的关系， 声音产生的声学特征。 这些措施将 包括：从反滤波近似的参数， 声门气流波形，声门阻力和声带的估计 效率，声音强度和基频的测量，以及 声襞接触模式的电声门图估计。 这些 措施将与从体检中收集的信息有关 的喉部和基于语音质量的判断。 数据将 从五组受试者（2个非病理性和3个 病理学）设计，以便可以研究功能亢进的性质， 存在的发音困难：l）在没有器质性病理学的情况下，和2）在 良性声带病变被认为是滥用/滥用 声音 实验设计的动机是一组相互关联的假设 其形成了发声机能亢进的描述性“模型”。 数据分析和 解释将与该模型相关。 结果预计 提供了关于与功能亢进有关的嗓音障碍的新信息， 这是基于客观措施的。 这些信息应该有助于 鉴别诊断和了解功能亢进的作用， 各种声音障碍的发展和维持。 措施 与描述发声功能亢进相关的词应该是 还具有作为诊断工具的未来临床实用性， 研究治疗效果。

It is generally believed that "vocal hyperfunction" is an underlying component in a majority of voice disorders, but there is a paucity of hard data concerning: l) specific physiologic and acoustic manifestations of vocal hyperfunction, and 2) the actual role of hyperfunction in the development and maintenance of various voice disorders. Thus, the primary goals of this project are to develop and use measures to: l) provide objective descriptions of conditions referred to as "vocal hyperfunction", and 2) add to existing knowledge concerning "normal" voice production in a way which will aid in interpreting data on hyperfunctional voice production. These goals will be accomplished through the use of a unique combination of non-invasively obtained indirect measures which should delineate relationships between underlying physiological mechanisms and acoustic characteristics of voice production. These measures will include: parameters derived from inverse-filtered approximations of the glottal air flow waveform, estimates of glottal resistance and vocal efficiency, measures of vocal intensity and fundamental frequency, and electroglottographic estimates of vocal-fold contact patterns. These measures will be related to information gathered from medical examination of the larynx and auditorily-based judgements of voice quality. Data will be obtained from five groups of subjects (2 non-pathologic and 3 pathologic) designed so that the nature of hyperfunction can be studied in dysphonias that exist: l) in the absence of organic pathology, and 2) in benign vocal pathology believed to be the result of abuse/misues of the voice. The experimental design is motivated by a set of interrelated hypotheses which form a descriptive "model" of vocal hyperfunction. Data analysis and interpretation will be related to this model. The results are expected to provide new information about hyperfunctionally-related voice disorders which is based on objective measures. Such information should help in the differential diagnosis and in understanding the role of hyperfunction in the development and maintenance of various voice disorders. Measures which turn out to be the mose relevant for describing vocal hyperfunction should also have future clinical utility as diagnostic tools and as means for studying therapeutic efficacy.