SPEECH AERODYNAMICS--REGULATION/CONTROL IN CLEFT PALATE

言语空气动力学——腭裂的调节/控制

• 批准号: 3220652
• 负责人: DONALD W WARREN
• 金额: $ 12.14万
• 依托单位: UNIV OF NORTH CAROLINA CHAPEL HILL
• 依托单位国家: 美国
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-01 至 1989-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3220652
• 关键词: cleft palate; human subject; plethysmography; respiratory airflow disorder; respiratory airflow measurement; respiratory airway pressure; respiratory airway volume; speech; speech disorder diagnosis; verbal behavior

Palatal incompetency appears to stimulate compensatory behaviors which tend to undermine rather than enhance speech performance. Recent studies in our laboratory suggest that these behaviors may be attempts to satisfy the requirements of a pressure regulating system. The objective of this research is to determine whether the compensatory responses associated with cleft palate are strategies devised to regulate speech pressures and control airflow and airway resistance. The purpose of a regulating system is to maintain a parameters constancy. The control process is the means by which this is accomplished. We propose that control of structural movements (resulting upper airway resistance) and airflow is necessary for regulation of speech pressures. Study of a regulating system involves experiments which identify and describe mechanisms of control. The use of subjects with different degrees of palatal incompetency will allow us to assess how the system is managed when an error is introduced. The pressure-flow technique, developed in our laboratory, will be used to measure respiratory parameters associated with speech and assess structural responses. The following questions will be addressed: I. Are intraoral speech pressures maintained at appropriate magnitudes across subjects and conditions of velopharyngeal competency? II. Does the significant increase in volume rate of airflow and effort in cleft palate speech correlate with the maintenance of pressure for consonant productions? III. Do the structures of the oral and nasal cavities interact in a complementary fashion that maintains pressure and controls airflow? IV. Are upper airway resistances controlled during speech in a manner characteristic of a pressure regulating system? and V. Are changes in timing patterns associated with velopharyngeal incompetency consistent with the characteristics of a regulating mechanism? If we determine that attempts to achieve an aerodynamic constancy result in compensatory responses, then new explanations for cleft palate speech should follow and new approaches to treatment would be possible.

帕拉塔尔的无能似乎刺激了趋向于的补偿行为 破坏而不是增强语音表现。 我们的最新研究 实验室建议这些行为可能是为了满足 压力调节系统的要求。 这项研究的目的是确定补偿性是否 与left裂有关的反应是制定的策略来调节 语音压力和控制气流和气道阻力。 目的 调节系统是保持参数恒定。 控件 过程是实现这一目标的手段。 我们提出了这一点 控制结构运动（导致的上呼吸道阻力）和 气流对于调节语音压力是必需的。 研究 调节系统涉及识别和描述的实验 控制机制。 使用不同程度的受试者 palatal的无能将使我们能够评估如何管理系统 引入错误。 在我们的实验室中开发的压力流技术将用于 测量与语音相关的呼吸参数并评估结构 回答。 以下问题将被解决： I.是处于适当幅度的口腔内语音压力 跨咽喉能力的受试者和条件？ ii。在气流量的体积和努力量的显着增加 left口感与维持压力相关 辅音作品？ iii。做口腔和鼻腔的结构在A中相互作用 保持压力并控制气流的互补方式？ iv。是在语音中以某种方式控制的上呼吸道阻力 压力调节系统的特征？和 V.是与咽咽相关的定时模式的变化 与调节机制的特征一致的无能吗？ 如果我们确定尝试实现空气动力恒定的尝试导致 补偿性回应，然后是left裂的新解释 应该遵循，新的治疗方法是可能的。