Linguapalatal Contact Pressures During Speech

言语过程中的舌腭接触压力

• 批准号: 6516302
• 负责人: JEFFREY P. SEARL
• 金额: $ 6.81万
• 依托单位: BOWLING GREEN STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-01 至 2004-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6516302
• 关键词: acclimatization; audiotape; behavioral /social science research tag; human middle age (35-64); human subject; mechanical pressure; method development; miniature biomedical equipment; noninvasive diagnosis; palate; patient oriented research; speech; speech disorder diagnosis; speech recognition; tongue; young adult human (21-34)

DESCRIPTION (provided by applicant): Abnormalities in tongue strength, range of motion, and coordination are primary contributors to speech deficits resulting from stroke, head injury, neuromuscular disease, oral cancer, and developmental delays. Despite the fact that tongue contact with the hard palate is a critical event for normal speech production, data regarding the strength of that contact during speech are limited. The goals of this project are to refine procedures for measuring linguapalatal contact pressure (LPCP) during speech and to gather LPCP data from individuals with unimpaired speech. Specific aims (SA) of the project are to: 1) determine a suitable transducer for measuring LPCP during speech, 2) identify the method of transducer adhesion in the mouth that interferes least with speech, 3) determine the accommodation period speakers require to adjust to the measuring device in the mouth, 4) describe LPCP variation as a function of various speaker behaviors, and 5) evaluate the relationship between LPCP, oral air pressure (P) and linguanalatal contact area (LPCA). Once the methodological issues are resolved, future work involving LPCP measurement will: 1) lead to a more complete understanding of speech production, 2) allow normative data collection to serve as a referent for individuals with disordered speech, and 3) lead to the development of a useful research and clinical procedure to improve the diagnosis and treatment of individuals with speech impairments. SA1 will be achieved by evaluating the response characteristics of two subminiature pressure transducers that appear suitable for LPCP measurement (Experiment 1). This will include transducer performance during speech production. To accomplish SA2, two methods of placing the transducer in the mouth (tape adhesion versus palatal mold mounting) will be compared in Experiment 2. The degree of speech distortion that each method induces will be gauged by evaluating listener perceptions, speaker perceptions, and acoustic features of the productions. SA3 will be met in Experiment 2 by recording speakers at set time intervals with the transducer in place and evaluating changes in listener perception of the speech across the time intervals. SA4 will be addressed in Experiment 3 when LPCP magnitude and variability will be described for a set of consonants spoken by individuals who will systematically vary speech rate, loudness, and articulatory precision. These production parameters are often manipulated therapeutically for individuals with speech deficits. SA5 will be achieved by evaluating the relationships between LPCP, P/o, and LPCA measures simultaneously recorded from individuals with unimpaired speech. Clearer understanding of the relationship between these measures will allow a more complete understanding of speech production, and lead to a larger research application dealing with speech dynamics.

描述（由申请人提供）：舌强度，范围 运动和协调是导致言语缺陷的主要因素， 中风，头部受伤，神经肌肉疾病，口腔癌， 延误了.尽管舌头与硬腭的接触是一个关键的 用于正常语音产生的事件，关于该接触强度的数据 言语是有限的。该项目的目标是完善程序 用于测量说话期间的舌腭接触压力（LPCP）， LPCP数据来自语言未受损的个体。具体目标（SA） 项目是：1）确定一个合适的传感器测量LPCP期间 2）识别口腔中换能器粘附的方法， 对说话干扰最小; 3）确定说话人的适应期 需要对口腔内的测量装置进行调整，4）描述LPCP 变化作为各种扬声器行为的函数，以及5）评估 LPCP与口腔气压（P）、舌腭接触面积的关系 （LPCA）。一旦方法问题得到解决， 测量将：1）导致对语音产生的更完整的理解， 2)允许规范性数据收集作为个人的参考， 无序的讲话，和3）导致一个有用的研究和发展， 临床程序，以改善诊断和治疗的个人与 语言障碍SA 1将通过评价反应来实现 两个超小型压力传感器的特性， 用于LPCP测量（实验1）。这将包括传感器性能 在演讲制作过程中。为了实现SA 2，可以使用两种方法来放置 口腔中的换能器（胶带粘附与腭模安装）将 对比实验2。每种方法的语音失真程度 诱导将通过评估听者的感知，说话者的感知， 和制作的声学特征。SA 3将在实验2中通过 在换能器就位的情况下以设定的时间间隔记录扬声器， 评估听众对讲话的感知在整个时间内的变化 的间隔SA 4将在实验3中讨论，当LPCP幅度和 将描述由个体说出的一组辅音的可变性， 将系统地改变语速、响度和发音精确度。 这些生产参数通常在治疗上被操纵， 有语言缺陷的人。SA 5将通过评估 同时记录的LPCP、P/o和LPCA测量值之间的关系 没有言语障碍的人。更清楚地了解关系 这些措施之间将允许一个更完整的理解讲话 生产，并导致一个更大的研究应用程序处理语音 动力学