Noise-induced vocal modulation in cotton-top tamarins (Saguinus oedipus)
Noise-induced vocal modulation in cotton-top tamarins (Saguinus oedipus)
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DOI：
10.1002/ajp.20317
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发表时间：
2006-12-01
影响因子：
2.4
通讯作者：
Hauser, Marc D.
中科院分区：
文献类型：
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作者：
Egnor, S. E. Roian;Hauser, Marc D.
隆巴德效应（Lombard effect）是一种发声幅度随背景噪音增加而增加的现象，在许多动物身上都可以观察到。我们调查了这种基本形式的声乐控制的棉顶绢毛猴（Saguinus俄狄浦斯）通过测量接触呼叫的幅度，组合长呼叫（CLC），同时改变背景噪声水平。所有受试者都表现出显着增加呼叫幅度和音节持续时间在响应背景噪声幅度的增加。与以前的结果，这项研究表明，绢毛猴有更大的声音控制的背景下，听觉反馈扰动比以前怀疑的。
Lombard effect - an increase in vocalization amplitude in response to an increase in background noise - is observed in a wide variety of animals. We investigated this basic form of vocal control in the cotton-top tamarin (Saguinus oedipus) by measuring the amplitude of a contact call, the combination long call (CLC), while simultaneously varying the background noise level. All subjects showed a significant increase in call amplitude and syllable duration in response to an increase in background noise amplitude. Together with prior results, this study shows that tamarins have greater vocal control in the context of auditory feedback perturbation than previously suspected.