The Perception of Short Bursts of Noise
The Perception of Short Bursts of Noise
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对短时噪声的感知
DOI：
10.1121/1.1906359
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发表时间：
1948
影响因子：
2.4
通讯作者：
G. A. Miller
中科院分区：
文献类型：
--
作者：
G. A. Miller
随机噪声的短脉冲被用来研究噪声体验的感知增长和衰减。噪声与正弦音调不同，它的频谱不会随着声音持续时间的变化而发生实质性的变化。为了与较长的噪声具有同等的效果，短时间的噪声必须更强烈。因此，通过将噪声的持续时间增加到至少1秒的持续时间来降低听力阈值。然而，强噪声的响度取决于其持续时间，最长持续时间仅为65毫秒。判断最慢的速度衰减的噪音听起来难以区分的突然终止也导致了一个概念的临界时间约为65毫秒。从这些数据可以推断，听觉系统的行为就好像噪声感知的增长和衰减周期取决于传递耳蜗听觉信号的各种神经通路之间的潜伏期差异。
Short bursts of random noise were used to study the perceptual growth and decay of the noise experience. Noise, unlike sinusoidal tones, does not change materially in spectrum as the duration of the sound is varied.A short burst of noise must be more intense in order to be equal in effectiveness to a longer noise. Thus the threshold of hearing is lowered by increasing the duration of the noise up to durations at least as long as 1 sec. The loudness of an intense noise, however, depends upon its duration up to durations of only 65 msec. Judgments of the slowest rate of decay of a noise which sounded indistinguishable from an abrupt termination also led to the concept of a critical time of approximately 65 msec. for the sensation to decay to threshold from any steady magnitude of stimulation.From these data it is inferred that the auditory system acts as if the growth and decay periods of the noise perception depend upon differences in latencies among the various neural paths in transmitting the cochlear ac...