Time delay induces oscillatory coherence in intracellular calcium oscillation system

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• 作者：Wei-Long Duan ; ^{yndwl@sina.com.cn" class="auth_mail}
• 关键词：Intracellular calcium oscillation ; Time delay ; Colored noise ; Coherence resonance
• 刊名：Physica A
• 出版年：1 July, 2014
• 年：2014
• 卷：405
• 期：Complete
• 页码：10-16
• 全文大小：399 K

文摘

In view of same time delay in active and passive transmission processes with colored noises of intracellular Ca²⁺, by means of second-order algorithm for stochastic simulation colored noises, the normalized autocorrelation function (NAF) and the characteristic correlation time (CCT) of cytosolic and calcium store鈥檚 Ca²⁺ concentration are studied. For the case of long : both NAFs of cytosolic and calcium store鈥檚 Ca²⁺ concentration exhibit periodically synchronous sawtooth wave, which linearly weakens as correlation time of colored noises or autocorrelation time increases. As increases, time delay induces oscillatory coherence in intracellular calcium oscillation system.