Oscillatory modes in a neuronal network model with transmission latency

摘要

We analyzed the oscillatory activities in a neuronal network model as the basis of synchrony of the activities in the brain. The model consists of two groups of neurons that are interconnected. One group is composed of an excitatory and an inhibitory neuron which are expressed by Hodgkin-Huxley equations. The network shows different phase-locked oscillations and other activities depending on the structure and intensity of interconnection between groups or coupling of neurons in the group, or the value of transmission latency. In the present paper we show the oscillatory modes in symmetrical and asymmetrical networks with the mutual coupling from the inhibitory neuron in each group to the excitatory neuron in the other group.