Shetty Hemanth Narayan, Raju Suma, Singh S Sanjana
Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India.
Department of Speech-Language Pathology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India.
J Otol. 2023 Oct;18(4):220-229. doi: 10.1016/j.joto.2023.09.004. Epub 2023 Sep 21.
The purpose of the study was to evaluate listening effort in adults who experience varied annoyance towards noise.
Fifty native Kannada-speaking adults aged 41-68 years participated. We evaluated the participant's acceptable noise level while listening to speech. Further, a sentence-final word-identification and recall test at 0 dB SNR (less favorable condition) and 4 dB SNR (relatively favorable condition) was used to assess listening effort. The repeat and recall scores were obtained for each condition.
The regression model revealed that the listening effort increased by 0.6% at 0 dB SNR and by 0.5% at 4 dB SNR with every one-year advancement in age. Listening effort increased by 0.9% at 0 dB SNR and by 0.7% at 4 dB SNR with every one dB change in the value of Acceptable Noise Level (ANL). At 0 dB SNR and 4 dB SNR, a moderate and mild negative correlation was noted respectively between listening effort and annoyance towards noise when the factor age was controlled.
Listening effort increases with age, and its effect is more in less favorable than in relatively favorable conditions. However, if the annoyance towards noise was controlled, the impact of age on listening effort was reduced. Listening effort correlated with the level of annoyance once the age effect was controlled. Furthermore, the listening effort was predicted from the ANL to a moderate degree.
本研究旨在评估对噪音有不同程度厌烦感的成年人的听力努力程度。
五十名年龄在41 - 68岁之间、以卡纳达语为母语的成年人参与了研究。我们评估了参与者在听语音时的可接受噪音水平。此外，还采用了在0 dB SNR（较不利条件）和4 dB SNR（相对有利条件）下的句末单词识别和回忆测试来评估听力努力程度。每种条件下都获得了重复和回忆分数。
回归模型显示，随着年龄每增长一岁，在0 dB SNR时听力努力程度增加0.6%，在4 dB SNR时增加0.5%。随着可接受噪音水平（ANL）的值每变化1 dB，在0 dB SNR时听力努力程度增加0.9%，在4 dB SNR时增加0.7%。在控制年龄因素时，在0 dB SNR和4 dB SNR下，听力努力程度与对噪音的厌烦感之间分别呈现中度和轻度的负相关。
听力努力程度随年龄增长而增加，且在较不利条件下的影响比在相对有利条件下更大。然而，如果控制了对噪音的厌烦感，年龄对听力努力程度的影响就会降低。一旦控制了年龄效应，听力努力程度与厌烦感水平相关。此外，听力努力程度可从中度程度上由ANL预测得出。
