LARYNGEAL FUNCTION IN NORMAL AND ABNORMAL SPEECH

本申请描述了以其为中心的喉部的检查 作为语音的源功能的生理控制和作用。这个 研究方法旨在揭示控制力与控制力之间的关系 肌肉和空气动力，一个由此产生的构型和 振动调节，以及最终的声学输出。肌肉活动 将通过肌电技术进行研究；体积描记术将 用于估计肺容量；空气动力学数据将由子项和 声门上压力和流量测量.喉部 将通过比较来自光纤图像的数据来检查配置， 高速电影、声门透照和电声门图；a 常规措施将包括使用逆滤波。一个实际的目标 许多比较测量方法之一是开发非侵入性方法 评估喉功能，可以用来取代更直接的， 但必然是侵入性的技术。 理解语音功能需要了解声门 外展和内收，基频的控制，以及 声门配置的控制，因为这些区域的基本参数 管理分段方式区别、超基本控制和声音的 质量控制。作为这一总体描述的一部分，喉咙-声道 交互是从两个角度来考察的--首先，在时间上 节段性发音，第二，在空气动力学和机械方面 它们在FO和语音质量控制方面相互作用。 对正常说话者的研究将与三项研究平行进行 临床人群，聋人、流利和不流利的失语症患者，以及 口吃者。这些研究的目的是提供关于以下方面的信息 在补救治疗中可能被证明有用的机制。

This application describes an investigation of the larynx centering on its physiological control and role as a source function for speech. The research method aims at revealing the relationship between the controlling muscular and aerodynamic forces, a the resulting configurational and vibratory adjustments, and the final acoustic output. Muscular activity will be studied by electromyographic techniques; plethysmography will be used for estimating lung volume; aerodynamic data will consist of sub- and supra-glottal pressure and flow measurements; aspects of laryngeal configuration will be examined by comparing data from fiberoptic images, high-speed movies, glottal transillumination, and electroglottography; a coustic measures will include use of inverse filtering. A practical goal of many of the comparative measurements is to develop noninvasive methods of assessing laryngeal function that can be used to replace more direct, but necessarily invasive techniques. An understanding of speech function requires an understanding of glottal abduction and adduction, the control of fundamental frequency, and the control of glottal configuration, because these area fundamental parameters that govern segmental manner distinctions, suprasemental control, and voice quality control. As part of this general account, the larynx-vocal tract interaction is examined from two points of view--first, temporally in segmental articulation, and second, aerodynamically and mechanically as they interact in FO and voice quality control. Studies on normal speakers are to be paralleled by studies of three clinical populations, the deaf, fluent and dysfluent aphasics, an stutterers. The object of these studies is to provide information about mechanisms that may prove useful in remediative therapy.