Song-related brain regions in the red-winged blackbird are affected by sex and season but not repertoire size.
Song-related brain regions in the red-winged blackbird are affected by sex and season but not repertoire size.
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红翅黑鸫与鸣叫相关的大脑区域受到性别和季节的影响，但不受曲目大小的影响。
DOI：
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
T. Devoogd
中科院分区：
文献类型：
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作者：
J. Kirn;R. Clower;D. Kroodsma;T. Devoogd
以前在鸣禽上的研究已经确定了负责歌声产生和控制的神经系统。早期的研究表明，歌唱系统的功能能力可能与动物大脑中该系统的质量有关，而成年人在该神经系统中的可塑性可能与成人的行为调整能力有关。我们现在在成年红翼黑鸟(Agelaius Phoeniceus)身上测试这些假设，这种物种的歌声主要由雄性产生，成年后雄性的曲目中增加了新的歌曲类型，雄性之间在歌曲复杂性方面存在显著差异。我们发现，男性的歌唱系统比女性的要大得多。随着动物经历更短的白天，鸣声系统的核在两性中都变得更小。我们没有发现曲目大小和所研究的任何歌曲系统结构的大小之间的任何联系。因此，尽管歌唱中的性别差异可能与歌唱系统结构质量上的性别差异有关，但歌唱中的个体差异似乎与男性体内的质量没有直接关系。雄性红翼鸣声系统结构的季节变化与成虫在解剖和行为上的可塑性之间存在联系；雌性红翼鸣声系统结构的巨大季节性变化表明这些核团的功能有很大的季节性变化。
Previous work in songbirds has delimited a neural system responsible for song production and control. Earlier studies have suggested that functional capacity in the song system may be related to the mass of the system in an animal's brain, and that adult plasticity in this neural system may be related to adult capacity for behavioral modification. We now test these hypotheses in adult red-winged blackbirds (Agelaius phoeniceus), a species in which song is produced primarily by males, new song types are added to the male's repertoire in adulthood, and there are substantial differences among males in song complexity. We find that the song system in males is much larger than in females. Song system nuclei become smaller in both sexes as the animals experience shorter days. We do not find any association between repertoire size and size of any of the song system structures examined. Thus, although sex differences in song may be related to differences between sexes in the mass of song system structures, individual differences in song do not appear to be directly related to mass within males. Seasonal change in song system structures in male redwings is consistent with there being a relation between adult plasticity in anatomy and in behavior; the large seasonal change in these structures in females suggests large seasonal changes in the function of these nuclei.
DOI：
10.1016/s0163-1047(86)90485-1
发表时间：
1986-11-01
期刊：
BEHAVIORAL AND NEURAL BIOLOGY
影响因子：
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作者：
NOTTEBOHM, F;NOTTEBOHM, ME;CRANE, L
通讯作者：
CRANE, L
鸣叫控制树突的微小性别差异与鸣叫能力的最小差异相关。
DOI：
10.1002/neu.480190303
发表时间：
1988
期刊：
Journal of neurobiology
影响因子：
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作者：
DeVoogd,TJ;Brenowitz,EA;Arnold,AP
通讯作者：
Arnold,AP
类固醇与鸟类鸣叫控制区的结构和功能的相互作用。
DOI：
10.1002/neu.480170305
发表时间：
1986
期刊：
Journal of neurobiology
影响因子：
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作者：
DeVoogd,TJ
通讯作者：
DeVoogd,TJ