金丝雀（Serinus canarius）听觉阈值的群体差异。

Colony differences in auditory thresholds in the canary (Serinus canarius).

作者信息

Okanoya K, Dooling R J

出版信息

J Acoust Soc Am. 1985 Oct;78(4):1170-6. doi: 10.1121/1.392885.

Abstract

Adult canaries (Serinus canarius) from a closebred colony of the Belgian "Waterslager" strain were trained with operant techniques to respond to pure tones. A psychophysical tracking procedure was used to measure absolute auditory thresholds in quiet and in noise. Absolute thresholds in the middle- to high-frequency region of the audiogram were between 30 and 40 dB higher (4-5 standard deviations) than those typically reported for other song birds including canaries of other strains and Waterslagers tested some years ago from another colony. Thus the Millbrook colony of domestic canary--an oscine songbird which learns its vocalizations by reference to auditory information--shows unusually high absolute thresholds for pure tones.

摘要

来自比利时“沃特斯拉格”品系近交群体的成年金丝雀（Serinus canarius），通过操作性技术训练对纯音做出反应。采用心理物理学跟踪程序来测量安静和噪声环境下的绝对听觉阈值。听力图中高频区域的绝对阈值比其他鸣禽（包括其他品系的金丝雀以及几年前从另一个群体测试的沃特斯拉格金丝雀）通常报告的阈值高30至40分贝（4至5个标准差）。因此，家养金丝雀的米尔布鲁克群体——一种通过参考听觉信息学习发声的鸣禽——对纯音表现出异常高的绝对阈值。