Brain-wide neuronal dynamics during motor adaptation in zebrafish.

Brain-wide neuronal dynamics during motor adaptation in zebrafish.
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斑马鱼运动适应过程中脑部范围的神经元动力学。

DOI:
10.1038/nature11057
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发表时间:
2012-05-09
期刊:
影响因子:
64.8
通讯作者:
Portugues, Ruben
Portugues, Ruben
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Ahrens, Misha B.;Li, Jennifer M.;Orger, Michael B.;Robson, Drew N.;Schier, Alexander F.;Engert, Florian;Portugues, Ruben

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神经科学中的一个基本问题是整个神经回路如何产生行为并使其适应感官反馈的变化。在这里,我们使用双光子钙成像来记录大量神经元在整个表达遗传编码的钙传感器的斑马鱼幼虫大脑的细胞水平上的活动,而瘫痪的动物虚构地与虚拟环境互动,并迅速调整其运动输出以适应视觉反馈的变化。我们将自适应运动中涉及的网络动力学分解为四种类型的神经响应特性,并提供相应部位的解剖图。这些信号的子集发生在行为调整期间,并且是驱动运动学习的功能元件的候选者。下橄榄的病变表明橄榄小脑回路在适应性运动中的特定功能作用。这项研究使得在行为过程中以单细胞分辨率分析全脑动力学成为可能。
A fundamental question in neuroscience is how entire neural circuits generate behavior and adapt it to changes in sensory feedback. Here we use two-photon calcium imaging to record activity of large populations of neurons at the cellular level throughout the brain of larval zebrafish expressing a genetically-encoded calcium sensor, while the paralyzed animals interact fictively with a virtual environment and rapidly adapt their motor output to changes in visual feedback. We decompose the network dynamics involved in adaptive locomotion into four types of neural response properties, and provide anatomical maps of the corresponding sites. A subset of these signals occurred during behavioral adjustments and are candidates for the functional elements that drive motor learning. Lesions to the inferior olive indicate a specific functional role for olivocerebellar circuitry in adaptive locomotion. This study enables the analysis of brain-wide dynamics at single-cell resolution during behavior.
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