PEPTIDERGIC DELINEATIONS OF NUCLEUS INTERFACE REVEAL A SEX DIFFERENCE IN VOLUME

被引：18

作者：

BALL, GF ^{[1
]}

ABSIL, P ^{[1
]}

BALTHAZART, J ^{[1
]}

机构：

[1] UNIV LIEGE,BIOCHEM LAB,LIEGE,BELGIUM

来源：

NEUROREPORT | 1995年 / 6卷 / 07期

关键词：

ZEBRA FINCH; SONG BIRD; METHIONINE ENKEPHALIN; VASOACTIVE INTESTINAL POLYPEPTIDE; SEXUAL DIFFERENTIATION;

D O I：

10.1097/00001756-199505090-00002

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

NUCLEUS interface (Nif) is a song bird vocal control nucleus located in the neostriatum. In zebra finches (Taeniopygia guttata), high densities of fibers immunoreactive for the vasoactive intestinal polypeptide (VIP) and methionine enkephalin (ENK) define the boundaries of this nucleus. The volume of Nif measured using this pattern of peptidergic immunoreactivity was greater in males than in females. This difference was also found in gonadectomized, testosterone-treated birds that had similar levels of circulating steroids, suggesting that it is organizational in nature. These data show that Nif may form part of the neural substrate underlying sex differences in song behavior. They also provide further evidence that VIP and ENK may play a role in the activation of bird song.

引用

页码：957 / 960

页数：4

共 24 条

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