的前脑前脑通路对于产生具有个体特征的学会发声是必要的
Zhilei Zhao1, Han Kheng Teoh2, Julie Carpenter1
1Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA.
Current biology : CB
|December 9, 2023
概括
的声学学习途径与歌鸟不同. 虽然前脑前脑路径 (AFP) 失活会影响呼叫,但隔离后脑前脑路径 (PFP) 会降低鸟的声乐结构,与歌鸟不同.
科学领域:
- 神经伦理学 神经伦理学
- 进行比较的神经解剖学.
- 鸟类的声音学习
背景情况:
- 表现出了显著的声音模仿和独特的声音签名.
- 和歌鸟与前脑 (AFP) 和后脑前脑 (PFP) 途径共享类似的神经歌声系统.
- 了解这些通路的功能组织是解读声学演变的关键.
研究的目的:
- 为了研究的声乐歌曲系统的功能组织.
- 为了比较和歌鸟中发声的神经控制.
- 为了确定后脑前脑通路 (PFP) 能否单独产生虫学会的发音.
主要方法:
- 建立了一个呼叫和响应的行为范式,用于 (Melopsittacus undulatus).
- 利用基于自编码器的机器学习来分析联系电话.
- 暂时禁用前脑前脑道 (AFP) 输出以评估PFP功能.
主要成果:
- 群体内的联系电话在声学上趋同,但个体保留了独特的声音特征.
- 前脑前脑路径 (AFP) 的失活立即影响了发声,这表明前运动作用.
- 在鸟中,后脑前脑通路 (PFP) 的隔离导致了呼叫结构的退化,刻板印象和个体的独特性,与歌鸟形成鲜明对比.
结论:
- 前脑前脑通路 (AFP) 的功能贡献和隔离后脑前脑通路 (PFP) 的容量在和歌鸟之间有显著差异.
- 这些差异很可能受到不同的行为生态和神经连接的影响.
- 的语音学习涉及到AFP的更完整的作用,而不是以前从歌鸟模型中理解的.
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