DEVELOPMENT OF FUNCTIONAL SPATIAL HEARING IN REVERBERATION

混响中功能性空间听力的发展

• 批准号: 10515265
• 负责人: ZHAO ELLEN PENG
• 金额: $ 20.26万
• 依托单位: FATHER FLANAGAN'S BOYS' HOME
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-07-01 至 2025-06-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10515265
• 关键词: 12 year old; 18 year old; 5 year old; 9 year old; Address; Adult; Affect; Age; Area; Auditory; Auditory Perception; Benchmarking; Bilateral; Binaural; Child; Cochlear Implants; Complex; Cueing for speech; Cues; Data; Development; Devices; Environment; Foundations; Goals; Hearing; Hearing Aids; Image; Impairment; Intervention; Knowledge; Learning; Life; Maps; Measures; National Institute on Deafness and Other Communication Disorders; Outcome; Outcome Measure; Pattern; Perception; Performance; Process; Psychophysics; Role; School-Age Population; Severities; Signal Transduction; Size Perception; Social Interaction; Source; Speech; Speech Perception; Surface; Testing; Time; Width; Work; auditory processing; base; educational atmosphere; hearing impairment; improved; innovation; noise perception; normal hearing; novel; object perception; precedence effect; prevent; school environment; skills; sound; speech in noise; virtual; virtual reality

PROJECT SUMMARY/ABSTRACT Adverse auditory environments in indoor spaces present constant challenges to children during everyday learning and social interactions. Spatial hearing provides access to auditory cues that promote auditory and speech perception in these difficult listening situations. However, auditory spatial cues are distorted in most indoor spaces due to reverberation—the excessive sound energy reflected from room surfaces arriving at the listener shortly after the initial sound directly from the source. The perceptual consequences of reverberation on spatial hearing have not been characterized in children with normal hearing, leaving a critical gap in our knowledge of benchmark abilities to assess hearing device fitting outcomes for children with hearing loss during real-world listening. In the proposed work, our goal is to reveal the developmental trajectories of functional spatial hearing abilities under realistic reverberation between 6- to 18-year-old children. This age range reflects the protracted development of perceptual abilities, which underlies a multitude of immaturities in children’s processing of auditory information particularly in difficult listening situations. This work takes an innovative and unprecedented approach to study the impact of reverberation in auditory virtual reality, in which realistic auditory environments mimicking children’s learning environments are simulated to maximize ecological validity. Across the specific aims, we examine three aspects of functional spatial hearing abilities under virtual reverberant environments that vary in interaural coherence—a metric that describes reverberation severity. In Aim 1, we will investigate developmental changes in apparent source width—a measure of perceived auditory object size that is critical for auditory scene analysis. In Aim 2, we will investigate the development of minimum audible angle, the smallest detectable angular separation between two sounds—a well-tested metric for auditory spatial acuity. In Aim 3, we will investigate developmental changes in minimum angular separation—a novel measure of spatial unmasking based on the smallest spatial separation required to receive a target speech benefit in competing babbles. By correlating the three outcome measures from the independent aims, we will assess the inter-relationships between auditory object perception, spatial acuity, and spatial unmasking in reverberant environments among school-aged children. Findings from the proposed work will (i) establish our understanding of typical developmental trajectories of functional spatial hearing in realistic reverberant environments, and (ii) elucidate the role of auditory object perception in spatial acuity and subsequently spatial unmasking in children. Together, this work will provide intervention benchmark to assess fitting outcomes for children with hearing loss, and will generate substantial feasibility and pilot data for a planned R01 to develop fitting strategies for children with hearing devices.

项目摘要/摘要 室内空间中的不利听觉环境每天都对儿童持续不断的挑战 学习和社交互动。空间听证会提供对促进听觉和的听觉提示的访问 在这些困难的聆听情况下的语音感知。但是，听觉空间提示在大多数 由于回响而导致的室内空间 - 从室表面反射的多余声音能量到达 听众直接从源头发出初始声音后不久。恢复的感知后果 在正常听力的儿童中没有表征空间听力，在我们的 了解基准能力评估听力设备适合听力损失的儿童的听力设备的知识 真实的聆听。 在拟议的工作中，我们的目标是揭示功能空间听力能力的发展轨迹 在6至18岁的孩子之间的现实混响中。这个年龄范围反映了旷日持久的 感知能力的发展，这是儿童处理中多种不成熟的基础 听觉信息，尤其是在艰难的聆听情况下。这项工作具有创新性和前所未有的 研究恢复在听觉虚拟现实中的影响的方法 模仿儿童的学习环境以最大程度地提高生态有效性。 在整个特定目标中，我们研究了虚拟下功能空间听力能力的三个方面 互动连贯性各不相同的回响环境，这是一个描述重复严重性的度量。在 AIM 1，我们将调查明显源宽度的发展变化，这是对听觉的衡量 对象大小对于听觉场景分析至关重要。在AIM 2中，我们将调查最小的发展 可听见角度，是两种声音之间最小的可检测角度分离 - 经过良好测试的听觉度量 空间敏锐度。在AIM 3中，我们将研究最小角度分离的发育变化 基于接收目标语音所需的最小空间分离的空间揭开措施 竞争的好处。通过将独立目标的三个结果指标相关联，我们将 评估听觉对象感知，空间敏锐度和空间揭示之间的相互关系 学龄儿童中的混响环境。 拟议工作的发现将（i）确定我们对典型的发展轨迹的理解 在现实的恢复环境中的功能空间听力，（ii）阐明听觉对象的作用 空间敏锐度的感知以及随后在儿童中的空间揭露。这项工作将共同提供 干预基准评估听力损失儿童的适合结果，并将产生大量 计划中的R01的可行性和试点数据，为有听力设备的儿童制定合适的策略。