Gryczyński M, Sułkowski W
ENT Department, Medical Academy, Lodz, Poland.
Pol J Occup Med. 1990;3(1):129-45.
Investigations were carried out to examine the ability to differentiate low-grade changes in tone frequency in 58 subjects (116 ears) with noise-induced hearing impairment. The results were compared with those obtained in an age-matched group of healthy controls with normal hearing acuity. Statistically, the slight discrimination of frequency changes was found to be significantly worse in the group with noise-induced hearing impairment.
对58名（116只耳朵）患有噪声性听力损伤的受试者进行了调查，以检测其区分音调频率细微变化的能力。将结果与听力正常的年龄匹配健康对照组所得结果进行比较。从统计学角度来看，发现噪声性听力损伤组对频率变化的细微辨别能力明显更差。
