Journal
NEURAL NETWORKS
Volume 49, Issue -, Pages 107-117Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neunet.2013.10.003
Keywords
Class I neuron; Synchronization; Short-term plasticity; Transition
Funding
- Innovation Foundation of BUAA for Ph.D. Graduates
- National Science Foundation of China [11172017, 11325208]
- Research Fund for the Doctoral Program of Higher Education [20121102110014]
- State Key Laboratory of Mechanical System and Vibration [MSV-2013-03]
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This paper investigates synchronization stability and firing transition in two types of the modified canonical class I neuronal networks, where the short-term plasticity of synapse is introduced. We mainly consider both unidirectional chain and global coupling configurations. Previous studies have shown that the coupled class I neurons can spontaneously de-synchronize. Presently, the short-term plasticity of synapse is considered to check the universality of this phenomenon. Based on the theoretical analysis and numerical simulation, it is shown that unidirectionally chain coupled class I neurons can realize synchronization, whereas bidirectionally coupled chain neurons cannot synchronize, and globally coupled class I neurons de-synchronize. Furthermore, the dynamics of coupled neurons with different firing modes are also studied in numerical simulations, and interesting transitions of different firing modes can be induced by the short-term plasticity. The obtained results can be helpful to further understand important effects of the short-term synaptic plasticity on realistic neuronal systems. (C) 2013 Elsevier Ltd. All rights reserved.
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