SEXUAL DIFFERENCE IN PATTERN OF HORMONE ACCUMULATION IN THE BRAIN OF A SONGBIRD
SEXUAL DIFFERENCE IN PATTERN OF HORMONE ACCUMULATION IN THE BRAIN OF A SONGBIRD
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DOI：
10.1126/science.205.4407.702
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发表时间：
1979-01-01
期刊：
影响因子：
56.9
通讯作者：
SALTIEL, A
中科院分区：
文献类型：
--
作者：
ARNOLD, AP;SALTIEL, A
成年斑胸草雀（Poephila guttata）接受氚化睾酮注射后，在与鸣叫有关的两个大脑区域（上纹状体腹侧尾部和前新纹状体的大细胞核）中发现雌性比雄性更少的激素浓缩细胞。在其他一些地区，没有发现性别差异。因此，特定神经群体对激素敏感性的性别差异可能是在控制鸣叫的神经区域中观察到的惊人的解剖二态性的基础。
After adult zebra finches (Poephila guttata) received injections of tritiated testosterone, fewer hormone-concentrating cells were found in females than in males in two brain regions involved in song: hyperstriatum ventrale pars caudale and magnocellular nucleus of the anterior neostriatum. In some other regions, no sexual difference was detected. It is, therefore, possible that sex differences in the sensitivity of specific neural populations to hormones underlie the striking anatomical dimorphism observed in neural regions controlling song.