Temporal resolution in normal-hearing and hearing-impaired listeners using frequency-modulated stimuli.
Temporal resolution in normal-hearing and hearing-impaired listeners using frequency-modulated stimuli.
复制标题
使用调频刺激的正常听力和听力受损听众的时间分辨率。
DOI：
10.1044/jshr.3502.436
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
L. Feth
中科院分区：
文献类型：
--
作者：
J. P. Madden;L. Feth
本研究比较了正常听力和听力受损受试者在辨别任务中对调频正弦信号的时间分辨率。一个信号在50毫秒内线性增加200 Hz。另一个是相同的，除了它的轨迹遵循一系列离散的步骤。中心频率为500、1000、2000和4000 Hz。随着步数的增加，单个步的持续时间减少，受试者的辨别能力单调下降。据推测，听众不能暂时解决的轨迹的步骤信号在短的步骤持续时间。在相同的感觉水平，并在相同的声压级，时间分辨率显着降低受损的科目。在等声压级条件下，组间差异较小。在所有条件下，4000 Hz下的性能比其他测试频率下差得多，因为该频率下的频率辨别力较差。
This study compares the temporal resolution of frequency-modulated sinusoids by normal-hearing and hearing-impaired subjects in a discrimination task. One signal increased linearly by 200 Hz in 50 msec. The other was identical except that its trajectory followed a series of discrete steps. Center frequencies were 500, 1000, 2000, and 4000 Hz. As the number of steps was increased, the duration of the individual steps decreased, and the subjects' discrimination performance monotonically decreased to chance. It was hypothesized that the listeners could not temporally resolve the trajectory of the step signals at short step durations. At equal sensation levels, and at equal sound pressure levels, temporal resolution was significantly reduced for the impaired subjects. The difference between groups was smaller in the equal sound pressure level condition. Performance was much poorer at 4000 Hz than at the other test frequencies in all conditions because of poorer frequency discrimination at that frequency.
感音神经性听力障碍听众的时间分辨率。
DOI：
10.1121/1.395131
发表时间：
1987
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Nelson,DA;Freyman,RL
通讯作者：
Freyman,RL