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

作     者：刘晓琳 侯国强 廖素群 李东风 

作者机构：华南师范大学生命科学学院广东省高等学校生态与环境科学重点实验室广州510631 

基　　金：supported by the National Natural Science Foundation of China (No. 30970363,30570232) the Natural Science Foundation of Guangdong Province, China (No. 05005910) 

出 版 物：《Neuroscience Bulletin》 (神经科学通报（英文版）)

年 卷 期：2010年第26卷第2期

页      码：147-152页

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.

主 题 词：adult zebra finches the robust nucleus of the arcopallium spontaneous action potential firing rates electrophysiological properties sexual dimorphism 

学科分类：0710[理学-生物科学类] 07[理学] 071006[071006] 

核心收录：

D　O　I：10.1007/s12264-010-1010-4

馆 藏 号：203395071...