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arXiv 1702.03474q-bio.NCq-bio.QM
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输入相关耦合神经网络发射率模型的实用逼近方法

Practical Approximation Method for Firing Rate Models of Coupled Neural Networks with Correlated Inputs

Andrea K. Barreiro, Cheng Ly

摘要:

快速的实验进展现在能够在神经系统的大区域以单细胞分辨率同时记录神经活动。这种神经网络活动的模型必然会增加大小和复杂性,从而增加模拟它们的计算成本和分析它们的挑战。在这里,我们提出了一种新的方法来近似的活动和射击统计的一般射击率网络模型(威尔逊-考恩型)受噪声相关的背景输入。该方法需要解决一个系统的超越方程和快速相比,耦合随机微分方程的蒙特卡罗模拟。我们实现了耦合神经网络的几个例子的方法,并表明,即使有适度的耦合强度和可观的异质性在许多参数的结果是定量准确的。这项工作应该是有用的研究如何定性地影响耦合神经网络的尖峰统计的各种神经属性。实现该方法的Matlab代码可以在GitHub(\url{http://github.com/chengly70/FiringRateModReduction})上免费获得。

英文摘要:

Rapid experimental advances now enable simultaneous electrophysiological recording of neural activity at single-cell resolution across large regions of the nervous system. Models of this neural network activity will necessarily increase in size and complexity, thus increasing the computational cost of simulating them and the challenge of analyzing them. Here we present a novel method to approximate the activity and firing statistics of a general firing rate network model (of Wilson-Cowan type) subject to noisy correlated background inputs. The method requires solving a system of transcendental equations and is fast compared to Monte Carlo simulations of coupled stochastic differential equations. We implement the method with several examples of coupled neural networks and show that the results are quantitatively accurate even with moderate coupling strengths and an appreciable amount of heterogeneity in many parameters. This work should be useful for investigating how various neural attributes qualitatively effect the spiking statistics of coupled neural networks. Matlab code implementing the method is freely available at GitHub (\url{http://github.com/chengly70/FiringRateModReduction}).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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