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Listening effort and binaural-hearing benefits in bilateral cochlear-implant users

双耳人工耳蜗使用者的听力努力和双耳听力益处

基本信息

批准号：
10767577
负责人：
Kristina Milvae
金额：
$ 3.73万
依托单位：
STATE UNIVERSITY OF NEW YORK AT BUFFALO
依托单位国家：
美国
项目类别：
财政年份：
2019
资助国家：
美国
起止时间：
2019-06-03 至 2023-06-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10767577
关键词：
Listening effort binaural hearing benefits

项目摘要

PROJECT SUMMARY/ABSTRACT Bilateral cochlear implants (BI-CIs) improve speech understanding and sound localization, but it is unknown whether two ears afford any listening effort benefits to BI-CI listeners. The long term goal is to understand bin- aural (two-ear) benefits in hearing-impaired listeners so that hearing devices are designed not only to maximize speech perception but also minimize listening effort, a dimension of perception that is potentially important. The specific objective of this proposal is to evaluate changes in speech understanding and listening effort in BI-CI listeners for binaural tasks. The central hypothesis is that symmetrical ears improve binaural benefits, but asym- metrical ears limit these benefits. The approach is to combine behavioral measures of perception with pupillom- etry, an objective and physiological measure of listening effort, which has yet to be used as a tool to understand the benefits of two sound inputs in BI-CI listeners. The rationale is that consideration of listening effort and speech perception together can give a more complete picture of real-world listening. Binaural benefits to speech perception and listening effort will be explored in two aims: 1) to determine the extent to which asymmetrical inputs affect perception and listening effort in dichotic listening in BI-CI and normal-hearing listeners and 2) to measure the extent to which BI-CIs improve speech understanding and reduce listening effort with spatial sep- aration of talkers. The contribution of this research is expected to be knowledge of the benefit of binaural hearing to listening effort in BI-CI listeners. This contribution is significant because it is a first step in understanding listening effort and reducing it in the future, particularly in noisy environments, for hearing-impaired listeners. This proposal is innovative because it uses an objective physiologic technique – pupillometry – to measure listening effort in CI listeners, and combines binaural hearing and listening effort expertise to examine the ad- vantages of BI-CI listening. The PI of this Mentored Career Development Award is an Au.D.-Ph.D. postdoctoral researcher at the University of Maryland-College Park. The PI will acquire expertise in binaural hearing and listening effort, increase proficiency in the study of CI listeners and the use of CI simulations, develop program- ming skills to design auditory experiments and simulate sound locations, and learn advanced statistical methods under this award. Other training activities include coursework in statistical methods, on-campus seminars, formal training in grant writing, and presenting research at professional meetings. The PI has assembled an interdisci- plinary team of mentors who are experts in the PI’s areas of interest. This mentorship and the mentee’s strong psychoacoustics background will prepare the PI to reach the long-term goals of attaining a tenure-track faculty position and developing an independent, R01-funded research program as a clinician-scientist, focused on im- proving the hearing of individuals with hearing loss in noisy environments.

项目总结/摘要双侧人工耳蜗植入物（BI-CI）可改善言语理解和声音定位，但尚不清楚两个耳朵是否为BI-CI收听者提供任何收听努力益处。长期目标是了解BIN- 听觉（双耳）的好处，听力受损的听众，使听力设备的设计不仅最大限度地提高语音感知，而且还最小化听力努力，这是潜在重要感知维度。的本建议的具体目标是评估BI-CI中言语理解和听力努力的变化双耳任务的听众。中心假设是对称的耳朵可以改善双耳的益处，但不对称的耳朵可以改善双耳的益处。标准的耳朵限制了这些好处。方法是将感知的行为测量与瞳孔测量相结合，听力测试是一种客观的生理测量方法，尚未被用作理解听力的工具。 BI-CI收听器中两个声音输入的好处。理由是，考虑到倾听的努力和语音感知一起可以给出真实世界听力的更完整的画面。双耳对语音的益处感知和听力努力将探讨两个目标：1）以确定在何种程度上不对称输入影响BI-CI和正常听力者在双耳分听中的感知和听力努力，以及2）测量BI-CI在多大程度上提高了语音理解，并减少了空间分离的听力努力，说话的人。这项研究的贡献预计将是知识的好处双耳听力与BI-CI听众的听力努力有关。这一贡献意义重大，因为它是理解的第一步听力损失的听众，特别是在嘈杂的环境中，减少它在未来的努力。这项建议是创新的，因为它使用了客观的生理技术-瞳孔测量-来测量在CI听众的听力努力，并结合双耳听力和听力努力的专业知识，以检查广告， BI-CI听力的优势这个指导职业发展奖的PI是一个A.D. -博士博士后马里兰大学帕克分校的研究员。PI将获得双耳听力方面的专业知识，听力的努力，提高熟练的研究，CI听众和使用CI模拟，开发程序，明技能设计听觉实验和模拟声音的位置，并学习先进的统计方法在这个奖项下。其他培训活动包括统计方法课程、校园研讨会、正式的培训撰写研究基金，并在专业会议上介绍研究成果。PI已经组装了一个椎间盘- 由PI感兴趣领域的专家组成的初级导师团队。这种指导和学员的强大心理声学背景将准备PI达到长期目标，实现终身教职定位和发展一个独立的，R 01资助的研究计划，作为一个临床科学家，专注于IM，在嘈杂的环境中为听力损失的人提供听力。