The hippocampus and caudomedial neostriatum show selective responsiveness to conspecific song in the female zebra finch
The hippocampus and caudomedial neostriatum show selective responsiveness to conspecific song in the female zebra finch
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DOI：
10.1002/neu.10070
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发表时间：
2002-07-01
期刊：
影响因子：
--
通讯作者：
Wade, J
中科院分区：
文献类型：
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作者：
Bailey, DJ;Rosebush, JC;Wade, J
对歌声的感知对于雄性和雌性鸣禽的繁殖成功都是至关重要的。通过检测同种或异种歌声呈现后即刻早期基因(IEGs)的表达，已经确定了这种知觉的几种神经结构。在所研究的少数几种鸟类中，鸣叫产生回路外的区域含有在鸣叫呈现后活跃的神经元，特别是尾侧上纹状体腹侧(MV)和尾侧新纹状体(NCM)。虽然在雄性斑马雀身上进行了详细的研究，但雌性斑马雀在这些涉及歌曲感知的神经底物上的IEG反应还没有被量化。因此，成年雌性斑马雀被呈现给斑马雀歌声、非斑马雀歌声、随机产生的音调或沉默30分钟。一小时后，他们被处死，他们的大脑被取出，切片，并进行免疫细胞化学处理以检测FOS的表达。暴露在斑马雀歌声中的动物在NCM中的FOS免疫反应细胞密度显著高于其他歌曲、音调或沉默的动物。在听到斑马雀和非斑马雀歌唱的鸟类中，CHV中的神经元激活是相同的，表达比没有听到歌声的那组更高。有趣的是，海马区(HP)和邻近的海马区(AHP)以类似于NCM的方式被激活。这些结果表明，CHV在鸣唱知觉中起着普遍的作用，而NCM和HP/AHP在促进雌性斑雀对特定物种的鸣叫的识别和反应方面起着更具体的作用。(C)2002年威利期刊公司。
The perception of song is vital to the reproductive success of both male and female songbirds. Several neural structures underlying this perception have been identified by examining expression of immediate early genes (IEGs) following the presentation of conspecific or heterospecific song. In the few avian species investigated, areas outside of the circuit for song production contain neurons that are active following song presentation, specifically the caudal hyperstriatum ventrale (MV) and caudomedial neostriatum (NCM). While studied in detail in the male zebra finch, IEG responses in these neural substrates involved in song perception have not been quantified in females. Therefore, adult female zebra finches were presented with zebra finch song, nonzebra finch song, randomly generated tones, or silence for 30 min. One hour later they were sacrificed, and their brains removed, sectioned, and immunocytochemically processed for FOS expression. Animals exposed to zebra finch song had a significantly higher density of FOS-immunoreactive cells in the NCM than those presented with other songs, tones, or silence. Neuronal activation in the cHV was equivalent in birds that heard zebra finch and non-zebra finch song, expression that was higher than that observed in the groups that heard no song. Interestingly, the hippocampus (HP) and adjacent parahippocampal area (AHP) were activated in a manner comparable to the NCM. These results suggest a general role for the cHV in song perception and a more specific role for the NCM and HP/AHP in facilitating recognition of and responsiveness to species-specific song in female zebra finches. (C) 2002 Wiley Periodicals, Inc.