Jain Chandni, Sahoo Jitesh Prasad
Int Tinnitus J. 2014;19(1):28-35. doi: 10.5935/0946-5448.20140004.
Tinnitus is the perception of a sound without an external source. It can affect auditory perception abilities in individuals with normal hearing sensitivity.
The aim of the study was to determine the effect of tinnitus on psychoacoustic abilities in individuals with normal hearing sensitivity.
The study was conducted on twenty subjects with tinnitus and twenty subjects without tinnitus. Tinnitus group was again divided into mild and moderate tinnitus based on the tinnitus handicap inventory.
Differential limen of intensity, differential limen of frequency, gap detection test, modulation detection thresholds were done through the mlp toolbox in Matlab and speech in noise test was done with the help of Quick SIN in Kannada.
RESULTS of the study showed that the clinical group performed poorly in all the tests except for differential limen of intensity.
Tinnitus affects aspects of auditory perception like temporal resolution, speech perception in noise and frequency discrimination in individuals with normal hearing. This could be due to subtle changes in the central auditory system which is not reflected in the pure tone audiogram.
耳鸣是一种在没有外部声源情况下感知到声音的现象。它会影响听力敏感度正常个体的听觉感知能力。
本研究的目的是确定耳鸣对听力敏感度正常个体心理声学能力的影响。
该研究对20名耳鸣患者和20名无耳鸣者进行。根据耳鸣障碍量表，耳鸣组又分为轻度耳鸣组和中度耳鸣组。
强度辨别阈、频率辨别阈、间隙检测测试、调制检测阈值通过Matlab中的mlp工具箱进行，噪声中的言语测试借助卡纳达语的Quick SIN完成。
研究结果表明，除强度辨别阈外，临床组在所有测试中表现不佳。
耳鸣会影响听力正常个体的听觉感知方面，如时间分辨率、噪声中的言语感知和频率辨别。这可能是由于中枢听觉系统的细微变化，而这种变化在纯音听力图中并未体现。
