EFFECTS OF AGING ON BINAURAL AND SPATIAL HEARING

衰老对双耳和空间听力的影响

• 批准号: 6086426
• 负责人: JANET D KOEHNKE
• 金额: $ 14.49万
• 依托单位: SETON HALL UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6086426
• 关键词: aging; behavioral /social science research tag; binaural hearing; clinical research; human subject; noise; perceptual maskings; presbycusis; sensorineural hearing loss; sound perception; space perception; speech recognition

DESCRIPTION: (Adapted from the Investigator's Abstract) One of the changes most frequently associated with aging is a loss of auditory sensitivity known as presbyacusis. Presbyacusis and its associated effects on auditory function often seriously reduce the ability of older adults to understand speech, which impacts everyday activities. The majority of research on presbyacusis has involved individual ear measures, ignoring the contribution of binaural and spatial hearing, although binaural interaction is known to be essential for effective communication and localization of speech and warning signals. Therefore, it is essential to quantify the type and the extent of the effects of presbyacusis on these abilities in order to achieve the long-term goal of developing effective remediation strategies for older adults. We intend to assess the speech understanding and sound localization skills of individuals with and without prebyacusis and to measure binaural detection on traditional detection tasks (e.g., MLD) and a spatial detection task. These detection tasks directly evaluate sensitivity to the predominant binaural cues of interaural time and intensity differences that are involved in the auditory processing of complex stimuli that occur in typical listening situations. The detection data will provide a direct means to systematically evaluate the theoretical relationships between speech understanding and basic sensitivity to interaural time and intensity cues described by Zurek (1993). The results of these experiments will also enable us to (1) identify binaural processing abilities of older individuals and (2) determine relationships between any impairment in basic binaural processing and performance on complex spatial tasks. Using this information we plan to design a simple binaural test or tests to predict the impact of presbyacusis on complex auditory signal processing and to develop effective management strategies to improve communication and facilitate auditory perception for older adults.

描述：（根据调查员的摘要改编）最大的变化之一 经常与衰老相关的是听觉敏感性的丧失 长老会。长老会及其对听觉功能的相关影响 通常认真地降低老年人理解语音的能力，这 影响日常活动。关于长老会的大多数研究 涉及单个耳朵措施，无视双耳和 空间听力，尽管已知双耳相互作用对于 言语和警告信号的有效沟通和本地化。 因此，必须量化效果的类型和程度 关于这些能力的长老会，以实现长期目标 为老年人制定有效的补救策略。我们打算 评估个人的语音理解和声音本地化技能 在有和没有前卵形前，并测量传统的双耳检测 检测任务（例如MLD）和空间检测任务。这些检测任务 直接评估对室内主要双耳线索的敏感性 在听觉处理中涉及的时间和强度差异 在典型的听力情况下发生的复杂刺激。检测数据 将提供一种直接的手段来系统地评估理论 语音理解与对室内的基本敏感性之间的关系 Zurek（1993）描述的时间和强度提示。这些结果 实验还将使我们能够（1）确定双耳处理能力 老年人和（2）确定任何损害之间的关系 基本的双耳处理和复杂空间任务的性能。使用此 我们计划设计简单双耳测试或测试以预测的信息 长老会对复杂听觉信号处理的影响并开发 有效改善沟通和促进的管理策略 老年人的听觉感知。