Stress hormones, social associations and song learning in zebra finches.
Stress hormones, social associations and song learning in zebra finches.
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DOI：
10.1098/rstb.2017.0290
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发表时间：
2018-09-26
期刊：
影响因子：
--
通讯作者：
Farine DR
中科院分区：
文献类型：
--
作者：
Boogert NJ;Lachlan RF;Spencer KA;Templeton CN;Farine DR
利用他人提供的信息是为决策提供信息的一种常见捷径。然而，动物并不是不加选择地模仿别人，而是在模仿什么、什么时候和谁方面有选择性。他们如何决定使用哪种“社会学习策略”？先前的研究表明，早期生活中的应激激素暴露可能很重要：虽然青少年斑马雀在解决新的觅食任务时复制了父母的行为，但那些在发育过程中暴露于皮质酮（CORT）水平升高的人只复制了无关的成年人。在这里，我们测试了这种社会学习策略的转换是否适用于声乐学习。在斑胸草雀中，少年雄性经常模仿他们父亲的歌声;在自由飞行的鸟舍中，CORT治疗的少年会转而模仿其他雄性的歌声吗？我们发现，CORT治疗的青少年复制他们的父亲的歌曲不准确相比，控制青少年。我们假设这可能是由于与父亲的社会觅食联系较弱，并发现与父亲一起觅食的时间较少的儿子产生的相似歌曲较少。我们的研究结果符合一个新的假设，将早期生活压力和社会学习联系起来：早期生活CORT暴露可能会间接影响社会学习，因为它塑造了社会关系。本文是“认知能力个体差异的原因和后果”主题的一部分。
The use of information provided by others is a common short-cut adopted to inform decision-making. However, instead of indiscriminately copying others, animals are often selective in what, when and whom they copy. How do they decide which ‘social learning strategy’ to use? Previous research indicates that stress hormone exposure in early life may be important: while juvenile zebra finches copied their parents' behaviour when solving novel foraging tasks, those exposed to elevated levels of corticosterone (CORT) during development copied only unrelated adults. Here, we tested whether this switch in social learning strategy generalizes to vocal learning. In zebra finches, juvenile males often copy their father's song; would CORT-treated juveniles in free-flying aviaries switch to copying songs of other males? We found that CORT-treated juveniles copied their father's song less accurately as compared to control juveniles. We hypothesized that this could be due to having weaker social foraging associations with their fathers, and found that sons that spent less time foraging with their fathers produced less similar songs. Our findings are in line with a novel hypothesis linking early-life stress and social learning: early-life CORT exposure may affect social learning indirectly as a result of the way it shapes social affiliations. This article is part of the theme issue ‘Causes and consequences of individual differences in cognitive abilities’.
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DOI：
10.1016/j.cub.2015.06.071
发表时间：
2015-08-17
期刊：
Current biology : CB
影响因子：
--
作者：
Farine DR;Spencer KA;Boogert NJ
通讯作者：
Boogert NJ
DOI：
10.1098/rstb.2017.0288
发表时间：
2018-09-26
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
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通讯作者：
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影响因子：
64.8
作者：
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通讯作者：
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影响因子：
9.2
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通讯作者：
Sheldon, Ben C.
影响因子：
9.2
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