NOISE EFFECT ON INTRACELLULAR CALCIUM OSCILLATIONS IN A MODEL WITH DELAYED COUPLING

Abstract

The cooperation of noise and the delayed coupling is investigated in a calcium model. Simulation results show that the constructive noise effect, like the coherence resonance (CR) and the optimization of signal regularity, can be significantly adjusted by the delayed coupling. Besides, the coupling may also play the constructive role to strengthen the signal by producing CR-like phenomenon under weak noise influence. When the noise is strong, the increase of coupling strength can decrease the adverse noise effect on the signal regularity.