Binaural Hearing with Bilateral Cochlear Implants: Binaural-Unmasking Advantages
双耳人工耳蜗植入的双耳听力:双耳揭秘的优势
基本信息
- 批准号:7261812
- 负责人:
- 金额:$ 3.33万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-04-19 至 2010-05-31
- 项目状态:已结题
- 来源:
- 关键词:Acoustic NerveAcoustic StimulationAcousticsAuditory Brain Stem ImplantsAuditory systemBilateralClinicalCochlear ImplantsConditionCuesDetectionDevelopmentDevicesDiscriminationEarElectric StimulationElectrodesEnvironmentHearingHearing Impaired PersonsImplantIndividualKnowledgeLiteratureMeasuresMethodsNoiseNumbersOutcomeOutcome MeasurePatientsPerformancePersonal SatisfactionPersonsProceduresProcessPsychophysiologyRateReportingResearchSchemeSideSignal TransductionSimulateSpeechSpeech DiscriminationSpeech PerceptionStimulusSystemTestingThinkingTimeWorkbasebinaural hearingdesignimprovednovelrelating to nervous systemresearch studysoundspeech processing
项目摘要
DESCRIPTION (provided by applicant): Cochlear implants have become extremely successful at restoring hearing in deaf individuals. Although they work well in quiet environments, almost all users have great difficulty understanding speech in the presence of noise. Bilateral cochlear implants are provided to a growing number of patients in an effort to alleviate this problem because binaural hearing in normal-hearing listeners is known to greatly enhance the ability to segregate speech from background noise. However, the benefits in bilateral cochlear implants users reported to date are modest compared with what is seen in normal-hearing persons. An obvious problem is that present cochlear implants processing schemes do not provide the information required to allow two devices to work together optimally. The proposed work will test the hypothesis that a key mechanism for enhancing speech discrimination by bilateral cochlear implant users is binaural unmasking via interaural correlation sensitivity. Although binaural unmasking cues have been well-studied in acoustic hearing, they remain poorly understood with cochlear implants. The proposed research builds on our novel preliminary finding that bilateral cochlear implant users can exploit interaural differences to improve signal detection in noise. The proposed research will investigate binaural signal detection and speech discrimination using two complementary paradigms. We will test (1) bilateral cochlear implant users and (2) normal-hearing subjects listening to stimuli chosen to be analogous to those used in the implant experiments. The proposed work will expand our knowledge of the binaural system using the novel stimuli available with cochlear implants and will allow the development of sound processors to produce better speech understanding in noise by cochlear implant users. Our research will also help inform an important question in the clinical world: whether cochlear implant users should get one or two devices. Knowing the magnitude of the bilateral cochlear implant advantages and how to maximize those advantages will inform this clinical debate. Bilateral cochlear implants are provided to a growing number of patients in an effort to improve speech understanding in the presence of noise because binaural hearing in normal-hearing listeners is known to provide such improvements. However, the benefits in bilateral cochlear implant users reported to date are modest compared with what is seen in normal-hearing persons. By studying how fundamental binaural cues are perceived by bilateral cochlear implant users we aim to develop processors to maximize the benefits bilateral cochlear implant users can obtain from their devices.
描述(由申请人提供):人工耳蜗在恢复聋哑人的听力方面已经非常成功。尽管它们在安静的环境中工作得很好,但几乎所有用户在有噪音的情况下都很难理解语音。为了缓解这个问题,为越来越多的患者提供了双侧人工耳蜗,因为众所周知,正常听力听众的双耳听力可以大大增强将语音与背景噪音分开的能力。然而,迄今为止,与听力正常的人相比,双侧人工耳蜗使用者所获得的益处并不多。一个明显的问题是,目前的人工耳蜗处理方案无法提供允许两个设备最佳协同工作所需的信息。拟议的工作将测试以下假设:增强双边人工耳蜗用户言语辨别能力的关键机制是通过耳间相关敏感性进行双耳揭露。尽管双耳揭示线索在声学听力方面已得到充分研究,但对于人工耳蜗的了解仍然很少。拟议的研究建立在我们新的初步发现的基础上,即双边人工耳蜗用户可以利用耳间差异来改善噪声中的信号检测。拟议的研究将使用两种互补的范例来研究双耳信号检测和语音辨别。我们将测试(1)双侧人工耳蜗使用者和(2)听力正常的受试者聆听与植入实验中使用的刺激类似的刺激。拟议的工作将利用人工耳蜗植入物提供的新颖刺激来扩展我们对双耳系统的了解,并将允许开发声音处理器,使人工耳蜗用户在噪声中产生更好的语音理解。我们的研究还将有助于解决临床领域的一个重要问题:人工耳蜗用户是否应该获得一个或两个设备。了解双侧人工耳蜗植入优势的大小以及如何最大限度地发挥这些优势将为这场临床辩论提供信息。为越来越多的患者提供双侧人工耳蜗,以努力提高噪声环境下的言语理解能力,因为众所周知,正常听力听众的双耳听力可以提供这种改善。然而,迄今为止,与听力正常的人相比,双侧人工耳蜗使用者所获得的益处并不多。通过研究双边人工耳蜗用户如何感知基本双耳线索,我们的目标是开发处理器,以最大限度地提高双边人工耳蜗用户从其设备中获得的好处。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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CHRISTOPHER Joseph LONG其他文献
CHRISTOPHER Joseph LONG的其他文献
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{{ truncateString('CHRISTOPHER Joseph LONG', 18)}}的其他基金
Binaural Hearing with Bilateral Cochlear Implants: Binaural-Unmasking Advantages
双耳人工耳蜗植入的双耳听力:双耳揭秘的优势
- 批准号:
7626691 - 财政年份:2007
- 资助金额:
$ 3.33万 - 项目类别:
Binaural Hearing with Bilateral Cochlear Implants: Binaural-Unmasking Advantages
双耳人工耳蜗植入的双耳听力:双耳揭秘的优势
- 批准号:
7624095 - 财政年份:2007
- 资助金额:
$ 3.33万 - 项目类别:
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