Journal
CHAOS
Volume 25, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4907193
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Funding
- Arctic Region Supercomputing Center at the University of Alaska Fairbanks
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Spatiotemporal chaos collapses to either a rest state or a propagating pulse solution in a ring network of diffusively coupled, excitable Morris-Lecar neurons. Weak excitatory synapses can increase the Lyapunov exponent, expedite the collapse, and promote the collapse to the rest state rather than the pulse state. A single traveling pulse solution may no longer be asymptotic for certain combinations of network topology and (weak) coupling strengths, and initiate spatiotemporal chaos. Multiple pulses can cause chaos initiation due to diffusive and synaptic pulse-pulse interaction. In the presence of chaos initiation, intermittent spatiotemporal chaos exists until typically a collapse to the rest state. (C) 2015 AIP Publishing LLC.
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