DETECTION OF GAPS IN NOISE BY BUDGERIGARS (MELOPSITTACUS-UNDULATUS) AND ZEBRA FINCHES (POEPHILA-GUTTATA)
DETECTION OF GAPS IN NOISE BY BUDGERIGARS (MELOPSITTACUS-UNDULATUS) AND ZEBRA FINCHES (POEPHILA-GUTTATA)
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DOI：
10.1016/0378-5955(90)90044-p
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发表时间：
1990-12-01
期刊：
影响因子：
2.8
通讯作者：
DOOLING, RJ
中科院分区：
文献类型：
--
作者：
OKANOYA, K;DOOLING, RJ
时间间隙检测阈值获得两种鸟类，虎皮鹦鹉和斑胸草雀，这是已知的具有不同的听觉滤波器带宽。 这两个物种的差距检测阈值约为2.5毫秒的宽带噪声刺激。 比较以1、3和5 kHz为中心的噪声的倍频程频带，斑胸草雀显示出以5 kHz为中心的噪声频带的最小间隙阈值，而虎皮鹦鹉显示出以3 kHz为中心的噪声频带的最小间隙检测阈值。 斑胸草雀的结果与听觉频谱-时间感知的滤波理论基本一致，而虎皮鹦鹉的结果则不一致。 总的来说，这些比较数据表明，在这两个物种的光谱和时间分辨率之间的关系可能涉及不同的机制。
Temporal gap detection thresholds were obtained for two species of birds, budgerigars and zebra finches, which are known to have different auditory filter bandwidths. Both species showed gap detection thresholds of about 2.5 msec for broadband noise stimuli. Comparing octave bands of noise centered at 1, 3, and 5 kHz, zebra finches showed the smallest gap thresholds for the noise band centered at 5 kHz whereas budgerigars showed the smallest gap detection thresholds for the noise band centered at 3 kHz. The results from zebra finches are generally consistent with filter theories of auditory spectro-temporal perception whereas the result from budgerigars are not. In aggregate, these comparative data suggest the relation between spectral and temporal resolving power in these two species may involve different mechanisms.