Low-dimensional dynamical model for the diversity of pressure patterns used in canary song
Low-dimensional dynamical model for the diversity of pressure patterns used in canary song
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DOI：
10.1103/physreve.79.041929
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发表时间：
2009-04-01
影响因子：
2.4
通讯作者：
Mindlin, Gabriel B.
中科院分区：
文献类型：
--
作者：
Alonso, Leandro M.;Alliende, Jorge A.;Mindlin, Gabriel B.
鸣禽在鸣唱时会产生大的气囊压力脉冲。在这些脉冲期间，能量被传递到位于支气管和气管之间的接合处的阴唇，引起负责气流调制的高频阴唇振荡，即，发出的声音。为了产生不同的音节，金丝雀（Serinus canaria）使用一组具有特征形状的气囊压力模式。在这项工作中，我们表明，这些不同的形状可以近似的次谐波解决方案的强制规范形式。这个简单的模型是建立从识别动态元素，允许再现对应于一个音节类型的压力模式的形状。值得注意的是，整合其他参数的简单模型可以恢复歌曲中使用的其他压力模式。解释这些生理姿势的多样性作为一个简单的非线性系统的分谐波解决方案，使我们能够同时考虑到他们的形态特征以及音节的时间，并提出了一个战略，为复杂的运动模式的产生。
During song production, oscine birds produce large air sac pressure pulses. During those pulses, energy is transferred to labia located at the juncture between the bronchii and the trachea, inducing the high frequency labial oscillations which are responsible for airflow modulations, i.e., the uttered sound. In order to generate diverse syllables, canaries (Serinus canaria) use a set of air sac pressure patterns with characteristic shapes. In this work we show that these different shapes can be approximated by the subharmonic solutions of a forced normal form. This simple model is built from identifying dynamical elements which allow to reproduce the shape of the pressure pattern corresponding to one syllable type. Remarkably, integrating that simple model for other parameters allows to recover the other pressure patterns used during song. Interpreting the diversity of these physiological gestures as subharmonic solutions of a simple nonlinear system allows us to account simultaneously for their morphological features as well as for the syllabic timing and suggests a strategy for the generation of complex motor patterns.