鼠标新皮质的神经网络
Brian Zingg1, Houri Hintiryan2, Lin Gou2
1Zilkha Neurogenetic Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90032, USA.
Cell
|March 4, 2014
概括
研究人员绘制了小鼠大脑连接的地图,揭示了大脑皮层被组织成不同的传感运动,中间和侧面子网络. 这为了解神经网络和大脑功能提供了新的资源.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 系统神经科学 系统神经科学
背景情况:
- 了解哺乳动物大脑皮层中神经网络的组织对于破译大脑功能至关重要.
- 之前的研究集中在局部神经元连接上,使全球皮层通信网络在很大程度上没有被绘制出来.
研究的目的:
- 在小鼠新皮质中创建皮质-皮质连接的全面地图.
- 确定大规模皮质网络的组织原则.
主要方法:
- 利用600多个标记的神经元通路从整个小鼠新皮质的标记剂注射.
- 在一个共同的神经解剖学框架内手工重建了240个皮质内连接.
- 生成连接矩阵和皮质地图来分析网络拓和子网络.
主要成果:
- 开发了一个详细的皮质连接图谱和皮质内连接的地图.
- 确定了八个不同的子网络:四个体质感官运动网络,两个介质网络和两个横向网络.
- 揭示了这些子网络具有独特的拓结构,并通过特定的皮质区域相互作用.
结论:
- 哺乳动物大脑皮层被组织成功能和拓上不同的子网络.
- 这项研究为未来对皮质网络组织和功能的研究提供了宝贵的资源.
- 已识别的子网络为了解不同大脑区域如何沟通和促进行为提供了一个框架.
更多相关视频
相关概念视频
Motor and Sensory Areas of the Cortex
8.1K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
8.1K
Somatosensory, Motor, and Association Cortex
5.0K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
5.0K
Neural Circuits
3.0K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
3.0K


