在小鼠中对特定轨道前皮层神经元的输入和输出进行全脑映射
Yijie Zhang1,2, Wen Zhang1, Lizhao Wang1
1Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
Neuroscience bulletin
|May 27, 2024
概括
这项研究将大脑范围内的输入映射到轨道前皮层 (ORB) 神经元,并将其输出到抑制性神经元. 结果揭示了ORB子区域的特定输入模式和对帕瓦胺 (PV) 和体静止素 (SST) 内神经元的差异向.
科学领域:
- 神经科学是一个神经科学.
- 大脑的连接性 大脑的连接性
- 细胞神经科学 细胞神经科学
背景情况:
- 轨道前皮层 (ORB) 对于决策和灵活的行为至关重要.
- 了解ORB电路,包括输入和抑制神经元目标,是不完整的.
研究的目的:
- 将大脑范围的输入映射到投影定义的ORB神经元.
- 描述ORB输出对特定的抑制性神经元类型 (帕瓦胺和索马托斯坦丁) 的特征.
主要方法:
- 在大脑中利用了投影特定的追踪技术.
- 对不同ORB神经元类型的量化输入.
- 分析了对ORB神经元后突触神经元中parvalbumin (PV) 和somatostatin (SST) 的分布.
主要成果:
- 不同的ORB投射神经元接收类似的皮质和thalamic输入,在somatomotor和thalamic区域有显著的变化.
- ORB神经元优先准感官皮层中的帕瓦胺 (PV) 内神经元.
- 中间ORB神经元显示出更高比例的向在皮层下区域的体静止素 (SST) 内神经元.
结论:
- 提供ORB电路的详细地图.
- 突出了ORB次区域对内部神经元群体的差异化向.
- 提供了对轨道前皮层功能组织的见解.
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