一个学会发声的蝙蝠的喋喋不休,与人类婴儿的喋喋不休相似
Ahana A Fernandez1,2, Lara S Burchardt1,2, Martina Nagy1
1Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany.
概括
蝙蝠幼表现出八个特征, 反映了人类婴儿的声音发育. 这一发现为跨物种的声音学习及其潜在机制的研究开辟了道路.
科学领域:
- 比较心理学
- 生物声学
- 发展语言学
背景情况:
- 在婴儿发言过程中, 喋喋不休是发声的关键里程碑.
- 非人类哺乳动物的证据有限,阻碍了跨物种的比较.
- 在一些非人类哺乳动物中观察到声产学习,这表明类似行为的潜力.
研究的目的:
- 研究和描述Saccopteryx bilineata (一种能够学习声音的蝙蝠物种) 的喋喋不休行为.
- 为了比较蝙蝠幼的声与人类婴儿的声.
- 探索声声本体的跨物种比较的潜力.
主要方法:
- 现场分析了20只Saccopteryx bilineata蝙蝠幼的声.
- 在3个月的发育期内观察发音 (本体).
- 对蝙蝠语与人类婴儿语数据集的声学和结构特征的比较分析.
主要成果:
- 在Saccopteryx bilineata蝙蝠幼中发现并分析了语行为.
- 蝙蝠小孩的语表现出八种不同的特征,
- 两种物种的语都有重复性和节奏性等关键特征.
结论:
- 喋喋不休不是人类婴儿的特征,至少有一种非人类哺乳动物也会出现这种现象,即 Saccopteryx bilineata.
- 语的共同特征表明了汇聚的进化或为声发育而保留的祖先机制.
- 这些发现为未来研究跨物种的认知,神经分子和适应性方面提供了基础.
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