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父母行为背后的功能电路架构
Johannes Kohl1, Benedicte M Babayan2, Nimrod D Rubinstein1
1Howard Hughes Medical Institute, Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA, USA.
Nature
|April 13, 2018
概括
研究人员发现大脑中的特定神经元
科学领域:
- 神经科学
- 行为神经科学
- 神经生物学
背景情况:
- 父母对哺乳动物后代的生存和福祉至关重要.
- 协调复杂的育儿行为的神经回路仍然不太清楚.
- 中部前视区域 (MPOA) 是关键的大脑区域,参与父母的照顾.
研究的目的:
- 调查介质前视区域 (MPOAGal) 中 galanin 表达神经元在协调小鼠的育儿行为中的作用.
- 了解MPOAGal神经元如何整合多种输入并投射到不同大脑区域来控制育儿的特定方面.
主要方法:
- 使用光遗传学来操纵小鼠的MPOAGal神经元活动和投射.
- 记录神经元活动并将其与特定的育儿行为相关联.
- 研究了MPOAGal神经元中各种大脑区域的输入,考虑性别和生殖状态.
主要成果:
- 在所有育儿行为中,MPOAGal神经元都很活跃.
- MPOAGal神经元的子集向不同的大脑区域发射,并被特定的育儿组件选择性地激活.
- 这些预测的光遗传操纵特别改变了育儿的离散方面,证明了功能专业化.
结论:
- MPOAGal神经元被组织成功能专业的池, 控制不同的育儿元素.
- 这种组织为产生复杂的社会行为提供了一个电路级模型.
- 这些发现提供了关于父母关怀和社会行为协调的神经基础的见解.
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