标题： 一种可兴奋电子电路作为感觉神经元模型 显示英文标题

标题： An excitable electronic circuit as a sensory neuron model

摘要： 一种受菲茨休-纳古莫模型启发的电子电路装置被构建并显示其操作特性与生物感觉神经元的特性相兼容。 电子学的非线性动力学模型定量地再现了电路的实验观察结果，包括在持续放电开始时的霍普夫分岔。 此外，我们实现了模拟噪声发生器作为研究脉冲序列变异性的来源。 当电路处于可激发状态下时，观察到相干共振。 在足够低的噪声强度下，脉冲序列具有泊松统计特性，如许多生物神经元一样。 随机脉冲序列的传递函数具有6分贝的动态范围，接近真实嗅觉受体神经元的实验值。 显示英文摘要

摘要： An electronic circuit device, inspired on the FitzHugh-Nagumo model of neuronal excitability, was constructed and shown to operate with characteristics compatible with those of biological sensory neurons. The nonlinear dynamical model of the electronics quantitatively reproduces the experimental observations on the circuit, including the Hopf bifurcation at the onset of tonic spiking. Moreover, we have implemented an analog noise generator as a source to study the variability of the spike trains. When the circuit is in the excitable regime, coherence resonance is observed. At sufficiently low noise intensity the spike trains have Poisson statistics, as in many biological neurons. The transfer function of the stochastic spike trains has a dynamic range of 6 dB, close to experimental values for real olfactory receptor neurons.