LARYNGEAL FUNCTION IN NORMAL AND ABNORMAL SPEECH

本申请描述了一种以其为中心的喉的调查， 生理控制和作为语音源功能的作用。 的 研究方法的目的是揭示控制与 肌肉和空气动力，a产生的构型和 振动调整和最终的声音输出。 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;空气动力学数据将包括子和 声门上压力和流量测量;喉功能方面 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; 预防措施将包括使用逆滤波。 一个实际的目标 许多比较性测量方法的一个重要方面是发展非侵入性方法 评估喉部功能，可以用来取代更直接， 但必须是侵入性技术。 要了解言语功能，就必须了解声门 外展和内收，基频的控制，以及 声门结构的控制，因为这些区域基本参数 支配着音段的方式区别、超感官控制和声音 质量控制 作为这个一般帐户的一部分，喉声道 交互作用从两个角度进行研究-首先，时间上， 节段性关节，其次，空气动力学和机械， 它们在FO和语音质量控制中相互作用。 对正常说话人的研究将被三个人的研究所取代。 临床人群，耳聋，流利和不流利的失语症， 口吃者 这些研究的目的是提供关于 这些机制可能在补救治疗中被证明是有用的。

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.