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Real-world tone development in children with cochlear implants

人工耳蜗植入儿童的真实音调发展

基本信息

批准号：
8877684
负责人：
LI XU
金额：
$ 44.55万
依托单位：
OHIO UNIVERSITY ATHENS
依托单位国家：
美国
项目类别：
财政年份：
2015
资助国家：
美国
起止时间：
2015-07-10 至 2019-06-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8877684
关键词：
18 year old Academic Research Enhancement Awards Acoustics Address Adult Age Attention Auditory Biological Neural Networks Child Childhood China Chinese People Clinical Cochlear Implants Code Complex Data Development Education Frequencies Goals Habilitation Hearing Hearing Impaired Persons Implant Individual Investigation Knowledge Laboratories Language Language Development Life Linguistics Masks Measures Music Noise Pathway Analysis Patients Pattern Peer Review Perception Performance Process Production Publications Quality of life Recruitment Activity Regression Analysis Rehabilitation therapy Research Sampling Sensorineural Hearing Loss Signal Transduction Speech Speech Perception Stimulus Stream Students Technology Time Work base design experience graduate student implantation improved innovation lexical programs public health relevance research study segregation skills speech processing undergraduate student

项目摘要

DESCRIPTION (provided by applicant): Cochlear implant has benefited thousands of patients with profound sensorineural hearing loss by providing satisfactory speech perception. Due to limited pitch information encoded in current speech processing strategies, tone perception and music perception are still challenging to users of cochlear implants. For patients who speak tone languages, such as Mandarin Chinese, tone perception is critical because tones convey lexical meaning at monosyllable levels. Tone perception and tone production in prelingually-deafened children have been studied for many years but not in real-world situations. The purpose of the proposed study is to investigate tone development in the rapidly increasing number of Mandarin-speaking children with cochlear implants in real-world situations. Specific Aim 1 of the proposed study addresses lexical tone perception in noise conditions in both Mandarin-speaking normal-hearing children and children with cochlear implants. One-hundred sixty normal-hearing, native Mandarin-speaking children and 100 prelingually- deafened children with cochlear implants between 3 and 18 years of age will be recruited to participating in tone perception experiment conducted in various noise types (i.e., steady-state noise, amplitude-modulated noised, and multi-talker speech babble noise) at various signal-to-noise ratios (i.e., from -6 to +12 dB). Another group of 20 normal-hearing adults will also be recruited as controls. In Specific Aim 2, the same groups of children subjects (i.e., normal-hearing and those with cochlear implants) as well as adult subjects will be recorded producing a listed of disyllable Chinese words and spontaneous production of sentences. The recorded speech materials will be subject to acoustic and neural-network analysis that we developed previously. The acoustic analysis will focus on the fundamental frequencies (F0) of the speech samples. The neural network analysis will be used to provide an objective measure of tone production accuracy of the children with cochlear implants based on the tone patterns of the adults and age-matched, typical developing children. Special attention will be paid in coarticulation of the tone patterns between syllables. Multiple regression analyses will be performed to identify any associations of age at implantation and duration of implant use with the tone perception in noise and tone production accuracy beyond monosyllable levels. Therefore, the proposed study represents tone development in real-world situations in children with normal hearing and cochlear implants. Although the proposed study is primarily concerned with lexical tone development, it has important implications for speakers of non-tonal languages because pitch information is used in auditory stream segregation as well as in music perception. Therefore, the proposed study could help improve quality of life for many cochlear implant users.

描述（由申请人提供）：通过提供令人满意的言语感知，Cochiar植入体已使数千名重度感音神经性听力损失患者受益。由于当前语音处理策略中编码的音高信息有限，音调感知和音乐感知对于人工耳蜗用户仍然具有挑战性。对于说声调语言（如汉语普通话）的患者，声调感知是至关重要的，因为声调在单音节水平上传达词汇意义。声调知觉和声调生产的prelingually-employed儿童已经研究了很多年，但不是在现实世界的情况。本研究的目的是探讨在现实世界中，人工耳蜗植入的汉语儿童数量迅速增加的声调发展。具体目标1提出的研究地址在噪声条件下的普通话正常听力的儿童和人工耳蜗植入儿童的词汇音调感知。将招募160名听力正常、母语为普通话的儿童和100名3 - 18岁的植入人工耳蜗的语前儿童参加在各种噪声类型（即，稳态噪声、调幅噪声和多讲话者语音多路重合噪声）在各种信噪比（即，从-6到+12 dB）。另一组20名听力正常的成年人也将被招募作为对照组。在具体目标2中，相同的儿童受试者组（即，听力正常的人和植入人工耳蜗的人）以及成年受试者将被记录产生一系列双音节汉语单词和自发产生句子。录制的演讲材料将受到我们以前开发的声学和神经网络分析的影响。声学分析将集中在语音样本的基频（F0）上。神经网络分析将用于根据成人和年龄匹配的典型发育儿童的音调模式提供人工耳蜗植入儿童音调产生准确性的客观测量。特别注意音节之间的声调模式的协同发音。将进行多元回归分析，以确定植入时的年龄和植入体使用持续时间与噪声中的音调感知和单音节水平以上的音调产生准确性之间的任何相关性。因此，拟议的研究代表了听力正常和人工耳蜗植入儿童在现实世界中的音调发展。虽然这项研究主要关注词汇音调的发展，但它对非音调语言的说话者具有重要意义，因为音高信息用于听觉流分离以及音乐感知。因此，拟议的研究可以帮助改善许多人工耳蜗使用者的生活质量。