I will consider a representative model for bursting electrical activity, and choose a parameter regime in which the fast subsystem is mono-stable so that individual, isolated cells are tonically spiking. Weak diffusive coupling of these cells has been shown to induce stable bursting behaviour. With stronger coupling, the cells revert to tonic spiking. The addition of noise dramatically increases, via a stochastic resonance-like phenomenon, the coupling range over which bursting is seen.
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