Synchronizations in small-world networks of spiking neurons: Diffusive versus sigmoid couplings
- Department of Physics, Tokyo Gakugei University, Koganei, Tokyo 184-8501 (Japan)
By using a semianalytical dynamical mean-field approximation previously proposed by the author [H. Hasegawa, Phys. Rev. E 70, 066107 (2004)], we have studied the synchronization of stochastic, small-world (SW) networks of FitzHugh-Nagumo neurons with diffusive couplings. The difference and similarity between results for diffusive and sigmoid couplings have been discussed. It has been shown that with introducing the weak heterogeneity to regular networks, the synchronization may be slightly increased for diffusive couplings, while it is decreased for sigmoid couplings. This increase in the synchronization for diffusive couplings is shown to be due to their local, negative feedback contributions, but not due to the short average distance in SW networks. Synchronization of SW networks depends not only on their structure but also on the type of couplings.
- OSTI ID:
- 20709840
- Journal Information:
- Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 5 Vol. 72; ISSN PLEEE8; ISSN 1063-651X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cluster synchronization in networks of neurons with chemical synapses
A chimeric path to neuronal synchronization