OBJECTIVE ASSESSMENT OF VOCAL HYPERFUNCTION

人们普遍认为“发声功能亢进”是一种潜在的 在大多数发音障碍的成分中，有一种是缺乏硬的 资料涉及：L)特殊的生理和声学表现 发声功能亢进，以及2)发声功能亢进在 发展和维持各种发音障碍。因此，主要的 该项目的目标是制定和使用措施来提供：L) 客观描述被称为“发声功能亢进”的情况， 以及2)添加关于在 一种有助于解释有关超功能语音的数据的方法 制作。这些目标将通过使用独特的 非侵入性获得的间接措施的组合 勾勒出潜在的生理机制和 声音产生的声学特性。这些措施将 包括：从反滤波近似得到的参数 声门气流波形、声门阻力和发声的估计 效率、声强和基频的测量，以及 电声门图对声带接触模式的估计。这些 这些措施将与从体检中收集的信息有关 喉咙和基于听觉的声音质量判断。数据将 来自五组受试者(2名非病理性受试者和3名 病理学])设计成可以研究功能亢进的本质 存在的发音困难：L)无器质性病理，2) 良性声带病变被认为是滥用/错过 声音。 实验设计的动机是一组相互关联的假设。 形成了声带功能亢进的描述性“模型”。数据分析和 解释将与此模型相关。预计结果将是 提供有关过度功能相关的语音障碍的新信息 这是建立在客观衡量基础上的。这些信息应该有助于 鉴别诊断和了解功能亢进在脑出血中的作用 各种发音障碍的发展和维持。采取哪些措施 原来与描述发声功能亢进应该是最相关的 也有未来的临床用途，作为诊断工具和手段 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.