Title :
The Influence of Delayed Coupling and Noise on Ca2+ Oscillatory Signal
Author :
Ji, Lin ; Zhang, Jia
Author_Institution :
Dept. of Chem., Capital Normal Univ., Beijing, China
Abstract :
The influence of delayed coupling and noise is investigated in a calcium signaling system. Simulation results prove that noise can optimize the calcium signal by inducing coherence resonance (CR) and decrease its own destructive effect on the signal regularity. The delayed coupling can adjust these noise effects. If the noise is weak, the coupling may strengthen the signal with the change of coupling strength by a CR-like phenomenon. Under strong noise, its adverse effect on signal regularity may also be optimized by increase the coupling strength.
Keywords :
bioelectric phenomena; cellular transport; coherence; nonlinear dynamical systems; oscillations; random noise; CR like phenomenon; Ca2+ oscillatory signal; calcium signaling system; coherence resonance; coupling strength; delayed coupling effects; noise effects; Biological system modeling; Calcium; Chemistry; Chromium; Communication system signaling; Coupling circuits; Delay effects; Frequency; Resonance; Signal processing;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5516541
