A network of electronic neural oscillators reproduces the dynamics of the periodically forced pyloric pacemaker group.
A network of electronic neural oscillators reproduces the dynamics of the periodically forced pyloric pacemaker group.
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电子神经振荡器网络再现周期性强制幽门起搏器组的动态。
DOI：
10.1109/tbme.2005.844272
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Selverston,AllenI
中科院分区：
文献类型：
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作者：
Denker,Michael;Szucs,Attila;Pinto,ReynaldoD;Abarbanel,HenryDI;Selverston,AllenI
低维振子是研究孤立神经元活动的一个很有价值的模型。当耦合时，单个自由振子的自持振荡被集体网络动力学所取代。在这里，这样一个网络，由三个电子实现的Hindmarsh-Rose数学模型的爆裂神经元的动力学特征进行比较的生物神经运动系统，特别是幽门CPG的甲壳类动物的口胃神经系统。我们表明，电子神经元网络具有现实的同步突发行为的生物系统相媲美。通过向其中一个振荡器中注入正弦电流来分析其动力学特性。电子神经元响应周期性刺激的时间突发结构与相应的生物网络中观察到的结构具有显著的相似性。这些发现提供了强有力的证据，耦合非线性振荡器真实地再现了实验观察到的几个神经元组件的网络动力学。
Low-dimensional oscillators are a valuable model for the neuronal activity of isolated neurons. When coupled, the self-sustained oscillations of individual free oscillators are replaced by a collective network dynamics. Here, dynamical features of such a network, consisting of three electronic implementations of the Hindmarsh-Rose mathematical model of bursting neurons, are compared to those of a biological neural motor system, specifically the pyloric CPG of the crustacean stomatogastric nervous system. We demonstrate that the network of electronic neurons exhibits realistic synchronized bursting behavior comparable to the biological system. Dynamical properties were analyzed by injecting sinusoidal currents into one of the oscillators. The temporal bursting structure of the electronic neurons in response to periodic stimulation is shown to bear a remarkable resemblance to that observed in the corresponding biological network. These findings provide strong evidence that coupled nonlinear oscillators realistically reproduce the network dynamics experimentally observed in assemblies of several neurons.