Fos-like immunoreactivity in catecholaminergic brain nuclei after territorial behavior in free-living song sparrows.
Fos-like immunoreactivity in catecholaminergic brain nuclei after territorial behavior in free-living song sparrows.
复制标题
自由生活的歌麻雀领地行为后儿茶酚胺能脑核中的 Fos 样免疫反应性。
DOI：
10.1002/neu.10227
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Ball,GregoryF
中科院分区：
文献类型：
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作者：
Maney,DonnaL;Ball,GregoryF
脑干的儿茶酚胺能细胞群在调节动机行为（包括生殖行为）中发挥重要作用。在鸣禽中，这些细胞群投射到参与歌唱的端脑核，并含有类固醇激素受体，这表明它们与鸣叫的季节调节有关。这些细胞核是否参与短期、时时刻刻的歌曲激活尚不清楚。在这项研究中，自由生活的雄性歌麻雀（Melospiza melodia）受到模拟领地入侵（STI）的刺激，从而刺激领地歌唱。由此产生的 fos 样免疫反应性 (FLI) 在脑干的两个 HVc 和 RA 投射儿茶酚胺能区域进行量化：蔡腹侧区 (AVT) 和中脑中央灰质 (GCt)。与对照组男性相比，遭受性传播感染的男性在这两个区域都表现出更多的 FLI。此外，两个核中的 FLI 与响应 STI 的歌曲数量呈正相关。针对入侵者的飞行次数与 AVT 中的 FLI 相关，但与 GCt 无关。这些结果表明 AVT 和 GCt 以及儿茶酚胺可能在鸣禽领地行为的调节中发挥作用。 © 2003 Wiley periodicals, Inc. J Neurobiol 56: 163–170, 2003
The catecholaminergic cell groups of the brainstem play an important role in the regulation of motivated behavior, including reproductive behavior. In songbirds, these cell groups project to telencephalic nuclei involved in singing and contain steroid hormone receptors, implicating them in the seasonal regulation of song. Whether these nuclei are involved in the activation of song on a short‐term, moment‐to‐moment basis is unknown. In this study, free‐living male song sparrows (Melospiza melodia) were subjected to simulated territorial intrusion (STI), which stimulates territorial singing. The resulting fos‐like immunoreactivity (FLI) was quantified in two HVc‐ and RA‐projecting catecholaminergic regions of the brainstem: the area ventralis of Tsai (AVT) and the midbrain central gray (GCt). Males subjected to STI showed more FLI in both of these regions than control males. In addition, FLI in both nuclei was correlated positively with the number of songs sung in response to STI. The number of flights directed at the intruder was correlated with FLI in AVT but not GCt. These results suggest a role for AVT and GCt, and thus possibly catecholamines, in the regulation of territorial behavior in songbirds. © 2003 Wiley Periodicals, Inc. J Neurobiol 56: 163–170, 2003