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Vocal learning in songbirds: the role of syllable order in song recognition
Philosophical Transactions of the Royal Society B: Biological Sciences ( IF 6.3 ) Pub Date : 2021-09-06 , DOI: 10.1098/rstb.2020.0248
Carien Mol 1 , Johan J Bolhuis 1, 2 , Sanne Moorman 1
Affiliation  

Songbird vocal learning has interesting behavioural and neural parallels with speech acquisition in human infants. Zebra finch males sing one unique song that they imitate from conspecific males, and both sexes learn to recognize their father's song. Although males copy the stereotyped syllable sequence of their father's song, the role of sequential information in recognition remains unclear. Here, we investigated father's song recognition after changing the serial order of syllables (switching the middle syllables, first and last syllables, or playing all syllables in inverse order). Behavioural approach and call responses of adult male and female zebra finches to their father's versus unfamiliar songs in playback tests demonstrated significant recognition of father's song with all syllable-order manipulations. We then measured behavioural responses to normal versus inversed-order father's song. In line with our first results, the subjects did not differentiate between the two. Interestingly, when males' strength of song learning was taken into account, we found a significant correlation between song imitation scores and the approach responses to the father's song. These findings suggest that syllable sequence is not essential for recognition of father's song in zebra finches, but that it does affect responsiveness of males in proportion to the strength of vocal learning.

This article is part of the theme issue ‘Vocal learning in animals and humans’.



中文翻译:

鸣禽的声音学习:音节顺序在歌曲识别中的作用

Songbird 的声音学习与人类婴儿的语音习得具有有趣的行为和神经相似之处。斑胸草雀雄性会唱一首独特的歌曲,它们模仿同种雄性,两性都学会识别父亲的歌曲。尽管男性复制了父亲歌曲的刻板音节序列,但序列信息在识别中的作用仍不清楚。在这里,我们研究了改变音节顺序后的父亲歌曲识别(切换中间音节、首尾音节或所有音节倒序播放)。在回放测试中,成年雄性和雌性斑胸草雀对其父亲的歌曲与陌生歌曲的行为方法和呼叫反应表明,通过所有音节顺序操作,对父亲歌曲的显着识别。然后,我们测量了对正常与逆序父亲之歌的行为反应。与我们的第一个结果一致,受试者没有区分两者。有趣的是,当考虑到男性的歌曲学习强度时,我们发现歌曲模仿分数与对父亲歌曲的接近反应之间存在显着相关性。这些发现表明,音节序列对于斑胸草雀识别父亲的歌声不是必不可少的,但它确实会影响雄性的反应能力,与声乐学习的强度成正比。我们发现歌曲模仿分数与对父亲歌曲的接近反应之间存在显着相关性。这些发现表明,音节序列对于斑胸草雀识别父亲的歌声不是必不可少的,但它确实会影响雄性的反应能力,与声乐学习的强度成正比。我们发现歌曲模仿分数与对父亲歌曲的接近反应之间存在显着相关性。这些发现表明,音节序列对于斑胸草雀识别父亲的歌声不是必不可少的,但它确实会影响雄性的反应能力,与声乐学习的强度成正比。

这篇文章是主题问题“动物和人类的声音学习”的一部分。

更新日期:2021-09-06
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