Autaptic effects on synchrony of neurons coupled by electrical synapses

In this paper, we numerically study the effects of a special synapse known as autapse on synchronization of population of Morris-Lecar (ML) neurons coupled by electrical synapses. Several configurations of the ML neuronal populations such as a pair or a ring or a globally coupled network with and wi...

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Bibliographic Details
Published in:Journal of the Korean Physical Society 2017, 71(1), , pp.63-69
Main Author: Kim, Youngtae
Format: Article
Language:English
Subjects:
Coupling
Feedback loops
Mathematical and Computational Physics
Neural networks
Neurons
Particle and Nuclear Physics
Physics
Physics and Astronomy
Populations
Spiking
Synapses
Synchronism
Theoretical
Time lag
Time synchronization
물리학
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Summary:In this paper, we numerically study the effects of a special synapse known as autapse on synchronization of population of Morris-Lecar (ML) neurons coupled by electrical synapses. Several configurations of the ML neuronal populations such as a pair or a ring or a globally coupled network with and without autapses are examined. While most of the papers on the autaptic effects on synchronization have used networks of neurons of same spiking rate, we use the network of neurons of different spiking rates. We find that the optimal autaptic coupling strength and the autaptic time delay enhance synchronization in our neural networks. We use the phase response curve analysis to explain the enhanced synchronization by autapses. Our findings reveal the important relationship between the intraneuronal feedback loop and the interneuronal coupling.
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.71.63