FREQUENCY-SELECTIVITY IN NORMALLY-HEARING AND HEARING-IMPAIRED OBSERVERS
FREQUENCY-SELECTIVITY IN NORMALLY-HEARING AND HEARING-IMPAIRED OBSERVERS
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DOI：
10.1044/jshr.2303.646
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发表时间：
1980-01-01
期刊：
影响因子：
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通讯作者：
ZWICKER, E
中科院分区：
文献类型：
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作者：
FLORENTINE, M;BUUS, S;ZWICKER, E
用4种不同的方法测量频率选择性，比较听力正常的人与传导性（非耳硬化）、耳硬化、噪声诱发或退行性听力损失的人。每一类损失由7-10名观察员代表，他们在500和4000赫兹的中心频率下进行测试。对每组进行4项测量：心理声学调谐曲线、窄带掩蔽、双音掩蔽和响度和。频率选择性在存在耳蜗听力损失的频率处降低。无论测试水平如何，听力正常的观察者和耳蜗受损的观察者进行比较，频率选择性都降低了。4项频率选择性指标均显著相关。频率选择性降低与耳蜗听力损失呈正相关。
Frequency selectivity, as measured by 4 different methods, was compared in observers human with normal hearing and in observers with conductive (nonotosclerotic), otosclerotic, noise-induced, or degenerative hearing losses. Each category of loss was represented by 7-10 observers, who were tested at center frequencies of 500 and 4000 Hz. For each group, the following 4 measurements were made: psychoacoustical tuning curves, narrow-band masking, 2-tone masking and loudness summation. Frequency selectivity was reduced at frequencies where a cochlear hearing loss was present. Frequency selectivity was reduced regardless of the test level at which normally-hearing observers and observers with cochlear impairment were compared. All 4 measures of frequency selectivity were significantly correlated. Reduced frequency selectivity was positively correlated with the amount of cochlear hearing loss.