BVP模型中通向混沌的阵发道路

Intermittancy to Chaos in BVP Model

本文运用数值计算的方法研究了包含周期刺激项Acos(ω_0t)的BVP(Bonhoeffer-van der Pol)模型随控制参数ω_0变化出现的分岔、混沌和阵发混沌.结果表明,受环境周期性变化的影响,在适当的条件下,一类可兴奋细胞系统表现出的复杂的电生理活动是与混沌行为密切相关的.

Following the variation of the controlled parameter, the bifurcations, chaos and intermit-tancy in BVP model in which a periodically stimulating term is included, are investigated by integrating the equation numerically. The results show that the complex electrophysiologic phenomena of some excitable cell systems are closely related to chaos under suitable conditions.