Cord M T, Leek M R, Walden B E
Walter Reed Army Medical Center, Washington, DC 20307-5001, USA.
J Am Acad Audiol. 2000 Oct;11(9):475-83.
Hearing-impaired listeners with similar hearing losses may differ widely in their ability to understand speech in noise. Such individual susceptibility to noise may explain why patients obtain varying degrees of benefit from hearing aids. The chief purpose of this study was to determine if adaptive measures of unaided speech recognition in noise were related to hearing aid benefit. Additionally, the relationship between perceived hearing handicap and benefit from amplification was explored. Before being fit with hearing aids, 47 new hearing aid users completed a self-assessment measure of hearing handicap Then, unaided speech recognition ability was measured in quiet and in noise. Three months later, subjects completed a hearing aid benefit questionnaire. A weak relationship was observed between perceived hearing handicap and hearing aid benefit. There were no significant relationships between speech-in-noise measures and hearing aid benefit, suggesting that speech recognition ability in noise is not a major determinant of the benefit derived from amplification.
听力损失程度相似的听力受损听众在理解噪声环境中的言语能力方面可能存在很大差异。这种对噪声的个体易感性或许可以解释为什么患者从助听器中获得的益处程度各不相同。本研究的主要目的是确定在无辅助情况下的噪声环境中言语识别的适应性测量指标是否与助听器的益处相关。此外，还探讨了感知到的听力障碍与放大效果带来的益处之间的关系。在佩戴助听器之前，47名新的助听器使用者完成了一项听力障碍自我评估测量。然后，测量了他们在安静和噪声环境中的无辅助言语识别能力。三个月后，受试者完成了一份助听器益处问卷。研究发现，感知到的听力障碍与助听器益处之间存在微弱的关系。在噪声环境中的言语测量指标与助听器益处之间没有显著关系，这表明噪声环境中的言语识别能力并非放大效果所带来益处的主要决定因素。
