GAP DETECTION IN THE STARLING (STURNUS-VULGARIS) .1. PSYCHOPHYSICAL THRESHOLDS
GAP DETECTION IN THE STARLING (STURNUS-VULGARIS) .1. PSYCHOPHYSICAL THRESHOLDS
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DOI：
10.1007/bf00610446
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发表时间：
1989-01-01
影响因子：
2.1
通讯作者：
MAIER, EH
中科院分区：
文献类型：
--
作者：
KLUMP, GM;MAIER, EH
用GO/NOGO程序测定了欧洲椋鸟（Sturnus vulgaris）的心理声学间隙检测阈值。在45 dB SPL的宽带噪声（590 Hz至8 kHz）中的中值最小可检测间隙为1.8 ms。间隙检测阈值与在此水平及以上的刺激声压级无关。低于45 dB，最小可检测间隙长度随着声压级的降低而增加，并且在25 dB的刺激声压级下为4.3 ms，这对应于低于10 dB的感觉级。结果进行了讨论，在鸟类的前掩蔽和强度差limens和相对于周围听觉系统的八哥的时间常数。的心理声学阈值进行了比较与神经生理学的间隙检测阈值的听觉前脑的八哥。
Psychoacousic gap-detection thresholds in our European starlings (Sturnus vulgaris) were determined in a GO/NOGO procedure using the method of constant stimuli. The median minimum detectable gap in a broadband noise (590 Hz to 8 kHz) presented at 45 dB SPL was 1.8 ms. Gap-detection thresholds were independent of the sound pressure level of the stimulus at this level and above. Below 45 dB the minimum detectable gap length increased with decreasing sound pressure level and was 4.3 ms at a stimulus sound pressure level of 25 dB, which corresponds to a sensation level of below 10 dB. The results are discussed in relation to forward masking and intensity-difference limens in birds and with respect to the time constants of the peripheral auditory system of the starling. The psychoacoustical thresholds are compared with neurophysiological gap-detection thresholds in the auditory forebrain of the starling.