Multi-modal cue integration for auditory spatial location by normal-hearing and hearing-impaired listeners.

多模态提示集成，用于正常听力和听力受损的听众的听觉空间定位。

• 批准号: MR/S002898/1
• 负责人: Michael Akeroyd
• 金额: $ 185.63万
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=MR%2FS002898%2F1
• 关键词: Multi; modal; cue; integration; auditory

A sharp sense of space is essential to making the world appear natural, real and joined-up. People with normal hearing can do exceptionally well in experimental tasks that measure the sense of space - someone's "spatial hearing". Yet hearing impairment generally worsens spatial hearing, leaving only an impoverished impression of auditory space. Hearing aids hardly ever help spatial hearing. Worse, they can often add further problems. But despite decades of research the science of spatial hearing is still not solved, especially for complex situations with multiple sounds happening simultaneously or in understanding the effects of impairment or aiding. This programme will help answer these puzzles.There are two overall benefits to listening from having acute spatial hearing. Both take advantage of that fact that in everyday listening sound sources are almost always in distinct physical locations. First, it allows sound sources to be perceived in the locations that they really are. Second, it allows sounds to be separated by virtue of being in different positions. These two together give a sense of realism to the auditory world and help identifying, recognizing or understanding sounds. These reduce the "clutter" of hearing in busy, noisy situations: without any spatial hearing at all, everything would be more likely to be heard together as a jumble. The situation is complicated by there being multiple cues to the direction and distance of a sound source. One is time: the sound from a source to the left will arrive a fraction of a second later at the right ear compared to the left as it has to travel some 50 cm further around the head. Another is intensity: the sound is less powerful as your head casts an acoustic "shadow". Yet despite these multiple cues we generally hear one location for a sound, not many. Further, what we see can affect where we hear a sound -- a famous example of this is the ventriloquist effect. The problem of generating accurate perceptions of auditory space is, overall, akin to solving a three-dimensional jigsaw of multiple overlapping sounds, time delays, and power differences. Somehow our perceptual systems seamlessly and apparently effortlessly solves the puzzle of putting all the pieces together properly. In this programme, we will use cutting-edge auditory experiments to answer two key questions. First, how does the auditory system join the multiple cues to location in complex, dynamic, multi-sound, audio-visual listening situations? Second, how does hearing impairment and aided listening affect this? We expect that the insights gained in this programme will help us to understand better how spatial hearing works in real, everyday listening, and will help inform how future hearing aids might be designed to improve spatial hearing

敏锐的空间感对于让世界显得自然、真实和连贯至关重要。听力正常的人可以在测量空间感（某人的“空间听力”）的实验任务中表现出色。然而，听力障碍通常会恶化空间听力，仅留下听觉空间贫乏的印象。助听器几乎无法帮助空间听力。更糟糕的是，它们常常会带来更多问题。但是，尽管经过了数十年的研究，空间听觉科学仍然没有得到解决，特别是对于同时发生多种声音的复杂情况，或者在理解损伤或辅助的影响时。该程序将帮助解答这些难题。拥有敏锐的空间听觉对聆听有两个总体好处。两者都利用了这样一个事实：在日常聆听中，声源几乎总是位于不同的物理位置。首先，它可以让声源在其真实位置被感知。其次，它允许声音由于处于不同的位置而被分开。这两者共同赋予听觉世界一种真实感，并有助于识别、识别或理解声音。这些减少了在繁忙、嘈杂的环境中听力的“混乱”：在没有任何空间听力的情况下，所有的东西都更有可能被混在一起听到。由于声源的方向和距离有多种线索，情况变得复杂。一是时间：与左耳相比，从左侧声源发出的声音到达右耳的时间要晚几分之一秒，因为它必须绕头部传播约 50 厘米。另一个是强度：当您的头部投射出声学“阴影”时，声音的强度会减弱。然而，尽管有这些多种线索，我们通常会听到一个位置的声音，但数量并不多。此外，我们看到的东西会影响我们听到声音的位置——一个著名的例子就是口技效应。总体而言，生成听觉空间的准确感知的问题类似于解决多个重叠声音、时间延迟和功率差异的三维拼图。不知何故，我们的感知系统无缝且显然毫不费力地解决了将所有部分正确组合在一起的难题。在本计划中，我们将使用尖端的听觉实验来回答两个关键问题。首先，听觉系统如何在复杂、动态、多声音、视听的聆听情境中将多个线索结合起来进行定位？其次，听力障碍和辅助听力对此有何影响？我们希望在此计划中获得的见解将帮助我们更好地了解空间听力在真实的日常听力中如何工作，并将有助于了解未来的助听器如何设计以改善空间听力

项目成果

A set of equations for numerically calculating the interaural level difference in the horizontal plane.

• DOI: 10.1121/10.0004261
• 发表时间: 2021-04
• 期刊: JASA express letters
• 影响因子: 1
• 作者: M. Akeroyd;J. Firth;S. Graetzer;Samuel S. Smith

The Utility of Economic Measures to Quantify the Burden of Tinnitus in Affected Individuals: A Scoping Review.

• DOI: 10.1007/s41669-021-00273-8
• 发表时间: 2022-01
• 期刊: PharmacoEconomics - open
• 作者: Daoud E;Caimino C;Akeroyd MA;Noreña AJ;Baguley DM
• 通讯作者: Baguley DM

sj-docx-2-tia-10.1177_23312165211053707 - Supplemental material for Associations Between Hearing and Cognitive Abilities From Childhood to Middle Age: The National Child Development Study 1958

sj-docx-2-tia-10.1177_23312165211053707 - 童年到中年听力与认知能力之间关联的补充材料：国家儿童发展研究 1958

• DOI: 10.25384/sage.16959455
• 发表时间: 2021
• 作者: Okely J

Tinnitus prevalence in Europe: a multi-country cross-sectional population study.

• DOI: 10.1016/j.lanepe.2021.100250
• 发表时间: 2022-01
• 期刊: The Lancet regional health. Europe
• 作者: Biswas R;Lugo A;Akeroyd MA;Schlee W;Gallus S;Hall DA
• 通讯作者: Hall DA

TIA887614 Supplemental Material - Supplemental material for Hearing in Adults: A Digital Reprint of the Main Report From the MRC National Study of Hearing

TIA887614 补充材料 - 成人听力补充材料：MRC 国家听力研究主要报告的数字重印本

• DOI: 10.25384/sage.11425530
• 发表时间: 2019
• 作者: Akeroyd M