白冠雀中的物种典型歌曲只用短语对进行辅导
Gary J Rose1, Franz Goller, Howard J Gritton
1Department of Biology, University of Utah, Salt Lake City, Utah 84112-0840, USA. rose@bioscience.utah.edu
Nature
|December 14, 2004
概括
像说话和唱歌这样的学会语音取决于记忆. 这项研究表明,鸟类使用来自配对歌曲短语的序列信息来正确组装复杂的声序.
科学领域:
- 动物行为 动物行为
- 生物声学是一种生物声学.
- 学习的神经科学学习的神经科学.
背景情况:
- 学习的声音行为,包括人类的言语和歌鸟的歌唱,被认为依赖于通过听觉反对声学信号的基于记忆的再现.
- 这些记忆的精确性质以及它们如何支持复杂的声序,仍然在很大程度上是未知的.
研究的目的:
- 提出和测试一个概念模型,解释如何复杂的歌曲结构可以从声乐辅导期间获得的稀疏序列信息中出现.
- 调查生成完整和正确结构的学习发音所需的序列信息的最低要求.
主要方法:
- 开发了一个概念模型,涉及组合敏感 (短语对) 探测器,由早期歌曲曝光形成.
- 实验教练的歌鸟具有特定的歌词组合:通常相邻的对,反序的对和单一的短语.
- 在每个辅导条件下分析了鸟类产生的歌曲结构.
主要成果:
- 用通常相邻的短语对进行辅导的鸟类成功地用正确的短语顺序组装了完整的歌曲.
- 用反向排序的短语对进行辅导的鸟类以反向排序的短语对产生了歌曲.
- 用单独呈现的所有歌词进行辅导的鸟类无法产生正常的,完整的歌曲.
结论:
- 证明稀疏的序列信息,特别是短语对关系,对于生成复杂的学习语音序列至关重要.
- 为正确的歌曲结构在声学模型中对序列信息的最小要求提供了第一个证据.
- 强调了关系记忆在学习声乐生产中的重要性.
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