AUDITORY FEEDBACK AND SPEECH PRODUCTION

听觉反馈和语音产生

• 批准号: 3217952
• 负责人: VIVIEN C TARTTER
• 金额: $ 9.41万
• 依托单位: CITY COLLEGE OF NEW YORK
• 依托单位国家: 美国
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1994-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3217952
• 关键词: adult human (21+); audiometry; audiotape; auditory discrimination; auditory feedback; auditory stimulus; cochlear implants; cochlear microphonic potentials; computer program /software; congenital deafness; deafness; human subject; middle childhood (6-11); noise biological effect; psychoacoustics; reading; sound frequency; speech; vocalization

Effects of distorting auditory feedback on acoustic manifestations of phonetic targets in children and adults are investigated. Experiment 1 measures speech degradation in an 11-year-old following sudden-onset deafness caused by cochlear implant failure. Experiment 2 measures speech changes over a year, consequent to multichannel electrical stimulation, in the same subject, and in two postlingually and two prelingually deafened children, and a postlingually deafened adult. Experiment 3 replicates and extends measures of speech changes in normal-hearing adults during wideband noise-masked auditory feedback. Experiment 4 high-pass filters the noise and narrow-band masks it in the regions of the fundamental and first, second, and third formant frequencies. Experiment 5 band-pass filters auditory feedback in the same frequency ranges as the masks of Experiment 4. Experiment 6 replicates Experiments 3 - 5 in normally-hearing children, to determine if responses to auditory feedback distortion change developmentally in the normally-hearing children, to determine if responses to auditory feedback distortion change developmentally in the normally- hearing. The results will address: 1) the existence of a critical period for speech production; 2) the effects of loss and distortion of auditory feedback on speech production; 3) the link between perception and production in acquiring speech; 4) the normal range of values for phonetic features in noisy environments; 5) how various cochlear implants affect the speech of their users with consequences for patient disposition; and 6) rehabilitation of the profoundly deaf with specific recommendations for speech therapies for cochlear implant candidates and users.

扭曲听觉反馈对声学表现的影响 研究了儿童和成人的语音目标。 实验1 突然发作后的11岁儿童中的语音退化 人工耳蜗失败引起的耳聋。 实验2衡量语音 一年多的变化，是多通道电刺激的原因， 同一主题，在两个后两个主题和两个初步聋 儿童和后聋的成年人。 实验3重复和 扩展宽带期间正常听觉成年人语音变化的度量 噪声掩盖的听觉反馈。 实验4高通过滤噪音 窄带将其掩盖在基本和首先的区域 第二，第三强频频率。 实验5带通滤波器 听觉反馈的频率与实验的面具相同的频率范围 4。实验6重复实验3-5，在正常的儿童中， 确定对听觉反馈失真变化的响应是否 在正常听证儿童中发育，以确定是否反应 在正常情况下，对听觉反馈的失真变化发生了发展 - 听力。 结果将解决：1）关键时期的存在 语音生产； 2）听觉损失和失真的影响 语音产生的反馈； 3）感知和 在获取言语中的生产； 4）语音的正常值范围 嘈杂环境中的特征； 5）各种耳蜗植入物如何影响 用户的言语对患者处置有后果；和6） 对深刻聋的康复，并提出具体建议 人工耳蜗植入候选者和用户的语音疗法。