PERCEPTION OF HARMONIC SOUNDS BY BIRDS

这项研究提案解决了关于对 鸟类发出复杂的谐音。雌雀，特别是雌雀 斑马雀(Taeniopygia Guttata)，曾作为 声乐心理声学、神经解剖学和神经生理学研究 生产和感知。关于声乐的细节我们知道得很多。 学习、歌曲制作的运动控制和知觉 这个物种辨别自然发音的能力。 然而，制作这样的声音所涉及的特定声学特征 判别及其与声学特性的关系 出现在自然叫声中，很少或根本没有得到研究。在……里面 此外，雌虫近缘物种的感知能力 都是未知的。另一种雌鸟，红嘴鸟 火雀(Lager Osticta Senegala)，将在这些研究中用作比较 实验。我将评估这两个物种的听力 与音调和复杂的和声有关的雌雀。 谐和刺激提供了一类重要的类似于 贴近自然斑马雀歌声和叫声的和谐结构， 但不是其他几个埃斯特里尔迪德人的纯音歌曲和呼唤 物种，包括红嘴火雀。为了评估如何 音调提示可以处理，我会测量相对敏感度 自然发声的相结构，相对相关系 和声复合体，以及由不同的 使用心理声学编程的谐波失谐类型和 测试程序。

This research proposal addresses questions regarding the perception of complex harmonic sounds in birds. Estrildid finches, in particular the zebra finch (Taeniopygia guttata), have served as models for psychoacoustic, neuroanatomical, and neurophysiological studies of vocal production and perception. Much is known concerning the details of vocal learning, the motor control of song production, and the perceptual capabilities of this species in discriminating natural vocalizations. However, the specific acoustic characters involved in making such discriminations and their relationship to the acoustic properties present in natural calls, have received little or no study. In addition, the perceptual capabilities of related species of estrildids are not known. An additional estrildid species, the red-billed firefinch (Lagonosticta senegala), will be used as a comparison in these experiments. I will evaluate the hearing abilities of these two species of estrildid finches in relation to tones and complex harmonic sounds. Harmonic stimuli provide an important class of sounds that resemble closely the harmonic structure of natural zebra finch songs and calls, but not the pure-tonal songs and calls of several other estrildid species, including the red-billed firefinch. In order to evaluate how pitch cues may be processed, I will measure sensitivity to the relative phase structure of natural vocalizations, relative phase relationships of harmonic complexes, and perceptual categories formed by different types of harmonic mistunings using psychoacoustic programming and testing procedures.