首页> 外文会议>Computational Neuroscience Meeting (CNS'01) Jul, 2001 Monterey, California >Entrainment, Arnold tongues, and duality in a periodically driven integrate-and-fire model
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Entrainment, Arnold tongues, and duality in a periodically driven integrate-and-fire model

机译:定期驱动的集成解雇模型中的引诱,阿诺德语和对偶

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We have studied an integrate-and-fire model neuron driven by a periodic sequence of Gaussian-shaped current pulses of width 1/2N and amplitude ε. For large N the current is a sequence of delta pulses and for smaller N it approaches a sine. When N is large, the firing rate f vs. ε curve is a staircase of entrainment steps yielding an Arnold tongue structure in the τ vs. ε plane. In the small N limit we find novel entrainment steps in the f vs. τ plane, without Arnold tongue structure. The steps in the two N regimes are related by a duality transformation. In the presence of noise in the pulse arrival times, the steps disappear above a critical noise value.
机译:我们研究了由宽度为1 / 2N和幅度为ε的高斯型电流脉冲的周期性序列驱动的积分和发射模型神经元。对于较大的N,电流是一系列脉冲脉冲,而对于较小的N,电流接近正弦。当N大时,点火速率f与ε的关系曲线是夹带阶梯的阶梯,在τ与ε的平面上产生Arnold舌头结构。在较小的N极限中,我们发现f与τ平面上有新颖的夹带步骤,没有Arnold舌头结构。两个N体制中的步骤通过对偶转换进行关联。在脉冲到达时间中存在噪声时,阶跃在临界噪声值以上消失。

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