Detection of bandlimited noise masked by wideband noise in the chinchilla.
作者信息
Shofner W P, Sheft S
机构信息
Parmly Hearing Institute, Loyola University Chicago, IL 60626.
出版信息
Hear Res. 1994 Jun 15;77(1-2):231-5. doi: 10.1016/0378-5955(94)90271-2.
PMID:7928736
Abstract
Six chinchillas were trained to detect a 1 s bandlimited noise signal in the presence of a continuous, wideband noise masker. As the bandwidth of the noise signal increased, there was a decrease in detection threshold. Threshold signal-to-noise ratios for the bandlimited noise signal were independent of the level of the noise masker. The slope of the bandwidth function obtained for the chinchilla is similar to the slopes reported for human subjects, approximating the predicted slope of the ideal energy detector.
摘要
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