COMPARISON BETWEEN THE STOCHASTIC AND THE DETERMINISTIC PATTERNS OF INTEGER MULTIPLE SPIKING IN SPONTANEOUS NEURAL FIRING DISCHARGE
神经自发整数倍峰放电节律的随机性和确定性模式的比较

In order to further reveal and distinguish the dynamics and changing regularity of the stochastic integer multiple spiking and the deterministic integer multiple spiking, the integer multiple spik-ing from the experiment, the stochastic Chay model, and the deterministic Wang model and their chang-ing regularity with respect to extra-cellular concentrations of Ca 2+ (Ca 2+ ] o ) or the reversal potential of Ca 2+ in model were studied. The results showed that the statistical characteristics and changing regularity of the integer multiple spiking from the experiment were similar to those from the stochastic Chay model, but different obviously to those from the deterministic Wang model. It indicated that the integer multiple spiking from the experiment and that from the stochastic model were caused by the effect of stochastic resonance, and were determined by both of the deterministic and the stochastic mechanism, and could not emerge only from the deterministic model.