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arXiv 2209.14751q-bio.NCmath.DS
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单神经元的低维模型

Low-dimensional models of single neurons: A review

Ulises Chialva, Vicente González Boscá, Horacio G. Rotstein

摘要:

经典的Hodgkin-Huxley(HH)点神经元动作电位产生模型是四维的。它由四个常微分方程描述的动态膜电位和三个门控变量相关联的瞬态钠和延迟整流钾离子电流。基于电导的HH型模型是经典HH模型的高维扩展。它们包括一些与其他离子电流类型相关的补充状态变量,并且能够描述其他现象,例如亚阈值振荡,混合模式振荡(穿插尖峰的亚阈值振荡),聚类和爆发。在这篇手稿中,我们讨论生物物理学合理的和现象学减少模型,保留生物物理和/或动态描述的HH型模型和产生复杂现象的能力,但有效的尺寸(状态变量)的数量较低。我们描述了几个代表性的模型。我们还描述了系统的和启发式的方法,推导出减少模型的HH型模型。

英文摘要:

The classical Hodgkin-Huxley (HH) point-neuron model of action potential generation is four-dimensional. It consists of four ordinary differential equations describing the dynamics of the membrane potential and three gating variables associated to a transient sodium and a delayed-rectifier potassium ionic currents. Conductance-based models of HH type are higher-dimensional extensions of the classical HH model. They include a number of supplementary state variables associated with other ionic current types, and are able to describe additional phenomena such as sub-threshold oscillations, mixed-mode oscillations (subthreshold oscillations interspersed with spikes), clustering and bursting. In this manuscript we discuss biophysically plausible and phenomenological reduced models that preserve the biophysical and/or dynamic description of models of HH type and the ability to produce complex phenomena, but the number of effective dimensions (state variables) is lower. We describe several representative models. We also describe systematic and heuristic methods of deriving reduced models from models of HH type.

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