Limiting parental interaction during vocal development affects acoustic call structure in marmoset monkeys.
Limiting parental interaction during vocal development affects acoustic call structure in marmoset monkeys.
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DOI：
10.1126/sciadv.aar4012
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发表时间：
2018-04
期刊：
影响因子：
13.6
通讯作者：
Hage SR
中科院分区：
文献类型：
--
作者：
Gultekin YB;Hage SR
缺乏亲代互动会导致狨猴叫声紊乱，这表明它在声音发育中起着至关重要的作用。人类声音的发展依赖于通过婴儿和照顾者之间的社会反馈来模仿学习。最近的研究表明，狨猴的声音发育也受到父母反馈的影响，这表明非人类灵长类动物的声音学习机制。狨猴婴儿比他们的同伴经历更多偶然的声音反馈，更快地发展发声，而父母互动有限的婴儿狨猴在婴儿期之后表现出不成熟的声音行为。然而，由于上述研究中所有的猴子都能够在婴儿期后产生成年的叫声，因此尚不清楚直接的父母互动是否是正常发声发育的必要条件。通过比较不同的鸣叫参数和声音序列结构，我们发现社会互动不仅对发声行为的成熟有直接影响，而且对发声发育过程中的声音鸣叫结构也有直接影响。与正常抚养的兄弟姐妹相比，在发育过程中父母互动有限的猴子在呼叫熵（成熟度的衡量标准）方面表现出系统性差异。此外，不同的叫声类型偶尔会以类似于声乐学习者（如鸟类和人类）在早期声乐发展中所表现出的图案序列发出。这些结果表明，缺乏亲代互动会导致狨猴发声的声学结构长期紊乱，这表明社会互动在灵长类动物发声发育中起着重要作用。
Lack of parental interaction leads to disturbances in marmoset calling, suggesting its crucial role in vocal development. Human vocal development is dependent on learning by imitation through social feedback between infants and caregivers. Recent studies have revealed that vocal development is also influenced by parental feedback in marmoset monkeys, suggesting vocal learning mechanisms in nonhuman primates. Marmoset infants that experience more contingent vocal feedback than their littermates develop vocalizations more rapidly, and infant marmosets with limited parental interaction exhibit immature vocal behavior beyond infancy. However, it is yet unclear whether direct parental interaction is an obligate requirement for proper vocal development because all monkeys in the aforementioned studies were able to produce the adult call repertoire after infancy. Using quantitative measures to compare distinct call parameters and vocal sequence structure, we show that social interaction has a direct impact not only on the maturation of the vocal behavior but also on acoustic call structures during vocal development. Monkeys with limited parental interaction during development show systematic differences in call entropy, a measure for maturity, compared with their normally raised siblings. In addition, different call types were occasionally uttered in motif-like sequences similar to those exhibited by vocal learners, such as birds and humans, in early vocal development. These results indicate that a lack of parental interaction leads to long-term disturbances in the acoustic structure of marmoset vocalizations, suggesting an imperative role for social interaction in proper primate vocal development.
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影响因子：
16.2
作者：
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