Involvement of the avian song system in reproductive behaviour
Involvement of the avian song system in reproductive behaviour
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鸟类鸣叫系统参与生殖行为
DOI：
10.1098/rsbl.2015.0773
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发表时间：
2015
期刊：
影响因子：
3.3
通讯作者：
João F. Botelho
中科院分区：
文献类型：
--
作者：
J. Wild;João F. Botelho
鸣禽的鸣唱系统由一组相互连接的前脑核团组成，传统上被认为是专门用于学习和产生歌曲的。然而，在这里，我们认为，歌曲系统也可以影响生殖行为中使用的肌肉，如泄殖腔括约肌。我们发现，相同的髓核，retroambigualis（RAM），脊髓运动神经元支配呼气肌（提供压力头发声）和发声运动神经元的发音-发声协调项目后，泄殖腔运动神经元的项目。此外，RAm神经元投射到骶脊髓水平被证明接受直接的投射从核粗壮arcopallialis（RA）的前脑歌曲系统。因此，通过指示RA和支配生殖器官的运动神经元之间的可能的双突触关系，在男性和女性中，这些结果潜在地扩展了歌曲系统的作用，包括生殖行为的消费以及食欲方面。
The song system of songbirds consists of an interconnected set of forebrain nuclei that has traditionally been regarded as dedicated to the learning and production of song. Here, however, we suggest that the song system could also influence muscles used in reproductive behaviour, such as the cloacal sphincter muscle. We show that the same medullary nucleus, retroambigualis (RAm), that projects upon spinal motoneurons innervating expiratory muscles (which provide the pressure head for vocalization) and upon vocal motoneurons for respiratory–vocal coordination also projects upon cloacal motoneurons. Furthermore, RAm neurons projecting to sacral spinal levels were shown to receive direct projections from nucleus robustus arcopallialis (RA) of the forebrain song system. Thus, by indicating a possible disynaptic relationship between RA and motoneurons innervating the reproductive organ, in both males and females, these results potentially extend the role of the song system to include consummatory as well as appetitive aspects of reproductive behaviour.