Sexual dimorphism of the electrophysiological properties of the projection neurons in the robust nucleus of the arcopallium in adult zebra finches

被引：5

作者：

Liu, Xiao-Lin ^{[1
]}

Hou, Guo-Qiang ^{[1
]}

Liao, Su-Qun ^{[1
]}

Li, Dong-Feng ^{[1
]}

机构：

[1] S China Normal Univ, Coll Life Sci, Key Lab Ecol & Environm Sci Higher Educ Guangdong, Guangzhou 510631, Guangdong, Peoples R China

来源：

NEUROSCIENCE BULLETIN | 2010年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

adult zebra finches; the robust nucleus of the arcopallium; spontaneous action potential firing rates; electrophysiological properties; sexual dimorphism; BASAL GANGLIA; SONG; BIRDSONG; SONGBIRDS; PATHWAY; SYSTEM; INPUTS; RA;

D O I：

10.1007/s12264-010-1010-4

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Objective To observe the sexual differences in electrophysiological properties of neurons in the robust nucleus of the arcopallium (RA) in adult zebra finches, and to provide the direct electrophysiological evidence for the sexual dimorphism of birdsong. Methods Whole-cell recording was used to record the spontaneous action potential firing rates from RA projection neurons in acute brain slices. Results The projection neurons of RA in male birds fired spontaneously at 10 Hz or above, while in female birds, the frequency was significantly lower, and even no firings could be detected. Conclusion There is a sexual difference in electrophysiological properties of projection neurons in RA, which may result from the difference in the levels of steroid hormones in birds.

引用

页码：147 / 152

页数：6

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