Linking SNR to hearing aid success

听力损失及其后果是影响所有人类的重要问题。任何人都不能免于衰老的过程或它对耳脑系统的最终影响。这一点值得注意，因为65岁及以上人口的增长速度高于总人口。预计到2030年，20%的人口将达到65岁或以上，35%至50%的人可能会报告患有老年性耳聋，这是一种主要通过使用助听器（HA）治疗的感觉障碍。然而，一个主要的问题是，HA在听力损失人群中的使用并不普遍（约25%），只有一半的用户报告对他们在噪音方面的辅助性能感到满意。尽管仔细的努力，以验证助听器（HA）是适当的安装在诊所，有很少的证据支持，目前的做法导致成功的结果。我们的假设是，成功的HA使用部分取决于由HA传递到人的听觉系统的信噪比（SNR）以及人自己在噪声中对语音进行神经编码的能力。我们的总体项目目标是确定有助于HA成功的以患者和器械为中心的变量，以便开发相关的结局指标并应用于临床环境。现实世界HA成功的两个预期预测因素是个体的噪声语音阈值（SNR-50）以及HA输出端的SNR。

DESCRIPTION: Hearing loss, and the resulting consequences of it, is an important problem that affects all humans. No person is exempt from the process of aging or the eventual impact it has on the ear-brain system. This point is noteworthy because the portion of the population aged 65 years and older is increasing at a faster rate than the total population. Twenty percent of the population is predicted to be 65 years or older by 2030 and between 35% and 50% will likely report having presbycusis, a sensory impairment that is treated primarily through the use of hearing aids (HA). A major problem, however, is that HA use among people with hearing loss is not prevalent (approximately 25%) and only half of those users report being satisfied with their aided performance in noise. Despite careful efforts to verify that hearing aids (HA) are fitted appropriately in the clinic, there is little evidence to support that current practices result in successful outcomes. Our hypothesis is that successful HA use depends, in part, on the signal-to-noise (SNR) ratio being delivered to a person's auditory system by their HA as well as a person's own ability to neurally encode speech in noise. Our overall project goal is to identify patient- and device-centered variables that contribute to HA success so that related outcome measures can be developed and applied in clinical settings. Two expected predictors of real-world HA success are the individual's threshold for speech in noise (SNR-50) as well as the SNR at the output of the HA.