Binaural Processing and Spatial Hearing: Effects of Age and Hearing Loss

双耳处理和空间听力：年龄和听力损失的影响

• 批准号: 10366194
• 负责人: John H Grose
• 金额: $ 50.42万
• 依托单位: UNIV OF NORTH CAROLINA CHAPEL HILL
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-12-01 至 2026-11-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10366194
• 关键词: Acoustics; Address; Adult; Age; Auditory; Auditory system; Behavioral; Binaural; Brain; Clinical; Cochlea; Cochlear Hearing Loss; Cognitive; Communication; Complex; Consensus; Dependence; Ear; Electrophysiology (science); Environment; Event; Exhibits; Functional disorder; Goals; Hearing; Location; Masks; Measures; Older Population; Outcome; Participant; Performance; Peripheral; Phase; Play; Predisposition; Psychophysics; Public Health; Role; Social Well-Being; Source; Speech; Speech Intelligibility; Structure; Testing; Time; Work; age effect; binaural hearing; design; experience; experimental study; hearing impairment; innovation; middle age; normal hearing; novel; relating to nervous system; senescence; skills; sound; speech in noise; speech recognition

The ability to make sense of sound relies, in some measure, on the fidelity with which the temporal information within that sound is encoded in the auditory system and interpreted by the brain. One facet of hearing where temporal processing plays an important role is spatial hearing. Good binaural hearing confers advantages such as spatial release from masking, which is the benefit to masked speech intelligibility of separating the target and masker speech sources in space. Older listeners – even those with ‘near-normal’ hearing – tend to have compromised binaural temporal processing and exhibit less binaural advantage. Determining the factors that underlie this is key to understanding the constraints on the abilities of older listeners to communicate and function in the spatially and acoustically complex soundscape of our every-day environment. The purpose of this project is to obtain a comprehensive characterization of the spatial hearing abilities of adults across a wide age range, with a particular emphasis on differentiating effects of age and hearing loss. This will have particular relevance to understanding the hearing difficulties of older listeners with otherwise ‘near-normal’ hearing. Specific Aims focus on binaural temporal processing and spatialized speech-in-speech recognition, particularly under dynamic conditions. The approach uniquely combines behavioral and electrophysiological measures, and also incorporates the listener’s cognitive profile. The findings will advance our understanding of the benefits of spatial hearing, and the dependence of these benefits on the fidelity of temporal information available to the listener. These outcomes will be directly relevant to the public health challenge of addressing the communication difficulties experienced by the burgeoning older population.

在某些衡量中，能够理解声音的能力依赖于临时信息的忠诚度 该声音在听觉系统中编码并由大脑解释。听证会的一个方面 临时处理起着重要作用，是空间听力。良好的双耳听证会供认这样的优势 作为从掩蔽中释放的空间释放，这是分开目标的掩盖语音清晰度的好处 还有太空中的掩蔽语音来源。年长的听众 - 即使是“接近正态”听证的听众 - 倾向于 损害双耳临时处理，并暴露了较少的双耳优势。确定因素 这是理解对年长听众交流和交流能力的约束的关键 在我们每天环境的空间和准确的声音景观上发挥作用。目的 该项目是为了获得对成年人在范围内的空间听力能力的全面表征 年龄范围，特别着重于年龄和听力损失的差异影响。这将有 特别是了解年长听众的听力困难的特殊意义 听力。具体目的专注于双耳临时处理和语音中的空间化语音识别， 特别是在动态条件下。该方法独特地结合了行为和电生理学 措施，还结合了听众的认知概况。这些发现将提高我们对 空间听证会的好处以及这些好处对临时信息的保真度的依赖性 可用于听众。这些结果将与解决公共卫生挑战直接相关 新兴的老年人群的沟通困难经历。