Linguapalatal Contact Pressures During Speech

描述(由申请人提供)：舌力异常，范围 运动和协调是导致言语障碍的主要因素 从中风、头部损伤、神经肌肉疾病、口腔癌和发育 耽搁了。尽管舌头与硬腭的接触是一个关键 正常语音产生的事件、关于该联系强度的数据 在说话过程中是有限的。这个项目的目标是改进程序 用于在语音过程中测量舌腭部接触压力(LPCP)并收集 来自语言正常个体的LPCP数据。的具体目标(SA) 项目是：1)确定用于测量LPCP的合适换能器 语音，2)识别在口腔中粘贴换能器的方法，该方法 对语音的干扰最小，3)确定说话人的适应时间 需要调整到嘴里的测量装置，4)描述LPCP 作为各种说话者行为的函数的变化，以及5)评估 LPCP、口腔气压(P)与舌面接触面积的关系 (LPCA)。一旦方法学问题得到解决，涉及LPCP的未来工作 测量将：1)导致对言语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 语音障碍，以及3)导致有用的研究和 临床程序，以改善个人的诊断和治疗 言语障碍。将通过评估响应来实现SA1 两种适合的超小型压力传感器的特性 用于LPCP测量(实验1)。这将包括传感器的性能 在演讲过程中。为了实现SA2，有两种方法可以将 口腔中的换能器(胶带粘合与腭部模具安装) 在实验2中比较。每种方法的语音失真程度 诱导将通过评估听者感知、说话者感知、 以及作品的声学特征。SA3将在实验2中满足以下条件 在传感器到位的情况下以设定的时间间隔对扬声器进行录音 评估听者在一段时间内对演讲感知的变化 间隔时间。SA4将在实验3中处理，当LPCP幅度和 将描述由以下个人所说的一组辅音的可变性 将系统地改变语音速率、响度和发音精度。 这些生产参数通常是通过治疗来操纵的 有言语障碍的人。SA5将通过评估 同时记录的LPCP、P/O和LPCA之间的关系 言语正常的个人。对两国关系有更清晰的认识 这些措施之间的差异将允许更完整地理解言语 产生，并导致处理语音的更大研究应用 动力学。

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.