Coherence resonance in globally coupled neuronal networks with different neuron numbers

Because a brain consists of tremendous neuronal networks with different neuron numbers ranging from tens to tens of thousands, we study the coherence resonance due to ion channel noises in globally coupled neuronal networks with different neuron numbers. We confirm that for all neuronal networks wit...

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Bibliographic Details
Published in:Chinese physics B 2012-02, Vol.21 (2), p.569-576, Article 028702
Main Author: 宁维莲 张争珍 曾上游 罗晓曙 胡锦霖 曾绍稳 邱怡 吴慧思
Format: Article
Language:English
Subjects:
Arrays
Brain
Coherence
Conductance
Joining
Neural networks
Neurons
Optimization
Spiking
信号编码
元数
增强效应
相干共振
神经元网络
离子通道
耦合神经网络
连贯性
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Summary:Because a brain consists of tremendous neuronal networks with different neuron numbers ranging from tens to tens of thousands, we study the coherence resonance due to ion channel noises in globally coupled neuronal networks with different neuron numbers. We confirm that for all neuronal networks with different neuron numbers there exist the array enhanced coherence resonance and the optimal synaptic conductance to cause the maximal spiking coherence. Furthermoremore, the enhancement effects of coupling on spiking coherence and on optimal synaptic conductance are almost the same, regardless of the neuron numbers in the neuronal networks. Therefore for all the neuronal networks with different neuron numbers in the brain, relative weak synaptic conductance （0.1 mS/cm2） is sufficient to induce the maximal spiking coherence and the best sub-threshold signal encoding.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/2/028702