【摘 要】
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Using single cell channel model,the transmission features of CA3-DG network in the hippocampus are investigated.The influence of the stimulation on discharge pa
【机 构】
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Department of Mathematics,Department of Applied Mathematics
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Using single cell channel model,the transmission features of CA3-DG network in the hippocampus are investigated.The influence of the stimulation on discharge pattern of pyramidal neurons is analyzed,which shows that it starts with period spiking discharges,followed by period-doubling bifurcation to chaos,and period 3 discharge evolving into chaos,and ultimately a period of bursting discharges.Bv the synaptic model,the CA3.DG network model is constructed,which analyzes the summation of postsynaptic currents in the network,the influence of postsynaptic current on discharge rhythm as well as the mechanism of bursting discharges.The strong capacitv of spatiotemporal encoding in the network indicates the features of CA3 network during the information transmission process in the hippocampus.The modeling result with time delay of the synaptic transmission is in accordance with the experimental phenomena of action potential in the hippocampus.
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