Neural Circuits Underlying Nest Building in Male Zebra Finches.
Neural Circuits Underlying Nest Building in Male Zebra Finches.
复制标题
雄性斑胸草雀筑巢的神经回路。
DOI：
10.1093/icb/icaa108
复制
发表时间：
2020
影响因子：
2.6
通讯作者：
Edwards SC
中科院分区：
文献类型：
--
作者：
Edwards SC
筑巢由一系列运动动作组成，这些动作与成年雄性斑胸草雀 (Taeniopygia guttata) 筑巢的前运动通路、社会行为网络和奖励回路区域的活动相伴。然而，尚不清楚这种活动是否是由于筑巢、收集和/或操纵巢材料所致。为了确定大脑的哪些区域特别参与，我们使用免疫组织化学来量化立即早期基因 c-Fosin 雄性斑胸草雀，这些鸟类正在筑巢（建筑），给予巢箱但只能与束缚巢材料相互作用的鸟类（固定），以及没有给予巢箱或巢材料的鸟类（对照）。我们研究了以下大脑区域：前运动通路（前腹侧中皮层 [AMV]、AN、前纹状体 [ASt]）、社会行为网络区域（终纹床核、背内侧细分 [BSTmd]、侧隔 [LS]）、多巴胺能奖励回路（腹侧被盖区）和小脑。我们发现，随着物质沉积的增加，BSTmd、LS 和 AMV 中 Fos 免疫反应性表达更高；在 LS、AMV ASt 和 Folium VI 中，增加了材料承载量；在 LS、AMV 和 ASt 中，增加巢材折叠；在 LS 和所有叶子（Folium VIII 除外）中，对束缚材料的拉力增加。这些数据证实了前运动通路、社会行为网络和小脑区域在鸟类收集和操纵巢穴材料中的功能作用。
Nest building consists of a series of motor actions, which are concomitant with activity in regions of the anterior motor pathway, the social behavior network, and the reward circuity in nest building adult male zebra finches (Taeniopygia guttata). It is not clear, however, whether this activity is due to nest building, collection, and/or manipulation of nest material. To identify which areas of the brain are specifically involved, we used immunohistochemistry to quantify the immediate early gene c-Fosin male zebra finches that were nest building (Building), birds given a nest box but could interact only with tied down nest material (Fixed), and birds that were not given a nest box or nest material (Control). We investigated the following brain regions: the anterior motor pathway (anterior ventral mesopallium [AMV], AN, anterior striatum [ASt]), areas of the social behavior network (bed nucleus of the stria terminalis, dorsomedial subdivision [BSTmd], lateral septum [LS]), the dopaminergic reward circuitry (ventral tegmental area), and the cerebellum. We found that there was greater Fos immunoreactivity expression in the BSTmd, LS, and AMV with increased material deposition; in LS, AMV ASt, and Folium VI with increased material carrying; in LS, AMV, and ASt with increased nest material tucking; and in LS and all folia (except Folium VIII) with increased tugging at tied down material. These data confirm a functional role for areas of the anterior motor pathway, social behavior network, and the cerebellum in nest material collection and manipulation by birds.