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arXiv cs/0411052cs.NEmath.PR
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非对称随机递归脉冲神经网络的自发动力学

Spontaneous Dynamics of Asymmetric Random Recurrent Spiking Neural Networks

H. Soula, G. Beslon, O. Mazet

摘要:

本文研究了一个独特的初始刺激对漏积分和放电神经元随机递归网络的影响。事实上,给定随机连通性,这种所谓的自发模式表现出各种非平凡的动力学。本研究提出了一种数学形式,使我们能够检查的变异性的后续动态根据参数的重量分布。假设独立性假设(例如在非常大的网络的情况下),我们能够计算在给定时间内激发的神经元的平均数量-尖峰活动。根据数值模拟,我们证明,这种尖峰活动达到一个稳定的状态,我们表征这个稳定状态,并探讨瞬态。

英文摘要:

We study in this paper the effect of an unique initial stimulation on random recurrent networks of leaky integrate and fire neurons. Indeed given a stochastic connectivity this so-called spontaneous mode exhibits various non trivial dynamics. This study brings forward a mathematical formalism that allows us to examine the variability of the afterward dynamics according to the parameters of the weight distribution. Provided independence hypothesis (e.g. in the case of very large networks) we are able to compute the average number of neurons that fire at a given time -- the spiking activity. In accordance with numerical simulations, we prove that this spiking activity reaches a steady-state, we characterize this steady-state and explore the transients.

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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