Whole-brain activity maps reveal stereotyped, distributed networks for visuomotor behavior.

Whole-brain activity maps reveal stereotyped, distributed networks for visuomotor behavior.
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DOI:
10.1016/j.neuron.2014.01.019
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发表时间:
2014-03-19
期刊:
影响因子:
16.2
通讯作者:
Orger MB
Orger MB
中科院分区:
医学1区
文献类型:
--
作者:
Portugues R;Feierstein CE;Engert F;Orger MB

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大多数行为,甚至是简单的先天反射,都是由横跨整个大脑区域的神经元回路调节的。然而,在大多数情况下,这些神经元在行为过程中的放电模式的分布和动态是未知的。我们用细胞分辨率,对斑马鱼整个大脑的活动进行成像,以进行光动力学反应。我们发现了一个稀疏的,广泛分布的网络,它有一个精心设计的,但有序的模式,具有双边对称的组织。活动模式分为不同的簇,反映了感觉和运动加工。通过将神经元反应与一系列感觉和运动变量相关联,我们发现网络可以清楚地划分为不同的功能模块。比较多种鱼类的数据,我们发现时空活动动态和功能组织在个体之间具有高度的模式化。这些实验首次在脊椎动物中揭示了感觉运动行为背后的神经回路的综合功能结构。
Most behaviors, even simple innate reflexes, are mediated by circuits of neurons spanning areas throughout the brain. However, in most cases, the distribution and dynamics of firing patterns of these neurons during behavior are not known. We imaged activity, with cellular resolution, throughout the whole brains of zebrafish performing the optokinetic response. We found a sparse, broadly distributed network that has an elaborate, but ordered, pattern, with a bilaterally symmetrical organization. Activity patterns fell into distinct clusters reflecting sensory and motor processing. By correlating neuronal responses with an array of sensory and motor variables, we find that the network can be clearly divided into distinct functional modules. Comparing aligned data from multiple fish, we find that the spatiotemporal activity dynamics and functional organization are highly stereotyped across individuals. These experiments reveal, for the first time in a vertebrate, the comprehensive functional architecture of the neural circuits underlying a sensorimotor behavior.
缰核:脊椎动物大脑中保守的不对称中继站。
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