Complex synchronous behavior in interneuronal networks with delayed inhibitory and fast electrical synapses
arXiv:1206.4862 · doi:10.1103/PhysRevE.85.061905
Abstract
Networks of fast-spiking interneurons are crucial for the generation of neural oscillations in the brain. Here we study the synchronous behavior of interneuronal networks that are coupled by delayed inhibitory and fast electrical synapses. We find that both coupling modes play a crucial role by the synchronization of the network. In addition, delayed inhibitory synapses affect the emerging oscillatory patterns. By increasing the inhibitory synaptic delay, we observe a transition from regular to mixed oscillatory patterns at a critical value. We also examine how the unreliability of inhibitory synapses influences the emergence of synchronization and the oscillatory patterns. We find that low levels of reliability tend to destroy synchronization, and moreover, that interneuronal networks with long inhibitory synaptic delays require a minimal level of reliability for the mixed oscillatory pattern to be maintained.
8 two-column pages, 7 figures; accepted for publication in Physical Review E
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Cited by in corpus (7)
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- Spatial evolution of Hindmarsh-Rose neural network with time delays
- Fluctuations of a surface relaxation model in interacting scale free networks