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Layer-Specific Physiological Features and Interlaminar Interactions in the Primary Visual Cortex of the Mouse

机译：鼠标初级视觉皮层的层特异性生理特征和层间相互作用

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摘要

The relationship between mesoscopic local field potentials (LFPs) and single-neuron firing in the multi-layered neocortex is poorly understood. Simultaneous recordings fromall layers in the primary visual cortex (V1) of the behaving mouse revealed functionally defined layers in V1. The depth of maximum spike power and sink-source distributions of LFPs provided consistent laminar landmarks across animals. Coherence of gamma oscillations (30-100 Hz) and spike-LFP coupling identified six physiological layers and further sublayers. Firing rates, burstiness, and other electrophysiological features of neurons displayed unique layer and brain state dependence. Spike transmission strength fromlayer 2/3 cells to layer 5 pyramidal cells and interneurons was stronger during waking compared with non-REM sleep but stronger during non-REM sleep among deep-layer excitatory neurons. A subset of deep-layer neurons was active exclusively in the DOWN state of non-REM sleep. These results bridge mesoscopic LFPs and single-neuron interactions with laminar structure in V1.
机译：多层Neocortex中介观型局部场电位（LFP）和单神经元烧制的关系较差。在行为鼠标的主要视觉皮层（V1）中的同时录制从初级视觉皮层（V1）中显示在V1中的功能定义层。 LFP的最大尖峰电源和耗材分布的深度为动物提供了一致的层状标志。伽马振荡（30-100Hz）和尖峰-LFP耦合的相干性识别六个生理层和进一步的子层。射击率，突发和神经元的电生理特征显示独特的层和脑状态依赖性。与非Rem睡眠相比，尖峰传播强度从层次2/3细胞到第5层的金字塔孔细胞和中间核素在醒来时更强烈，但在深层兴奋神经元中的非REM睡眠期间较强。深层神经元的子集专门在非REM睡眠状态下。这些结果在V1中桥接与层状结构的脑镜LFP和单神经元相互作用。

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  • 来源
    《Neuron》 |2019年第3期|共19页
  • 作者

    Senzai Yuta; Fernandez-Ruiz Antonio; Buzsaki Gyorgy;

  • 作者单位

    NYU Inst Neurosci Langone Med Ctr 550 1St Ave New York NY 10016 USA;

    NYU Inst Neurosci Langone Med Ctr 550 1St Ave New York NY 10016 USA;

    NYU Inst Neurosci Langone Med Ctr 550 1St Ave New York NY 10016 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经病学;
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