Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability
- 发表刊物：
- Communications in Nonlinear Science and Numerical Simulation
- 摘要：
- Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability are investigated numerically in the Morris–Lecar model neuron. It has been considered as a universal
phenomenon that critical amplitude curves exhibit U-shaped structures in the previous investigations. Nevertheless, we find that the critical amplitude relies on not only the type of a periodic stimulus but also
the dynamical mechanism of excitability of a neuron. The dynamical mechanism of excitability determines
whether a neuron is a resonator or integrator. There is a U-shaped structure in the critical amplitude curve
for a resonator subjected to a sinusoidal stimulus or a periodic pulse stimulus. However, in high frequency
range the critical amplitude increases monotonically with the stimulus frequency for a sinusoidal stimulus
and decreases monotonically for a periodic pulse stimulus. In contrast, for an integrator, the critical amplitude versus the stimulus frequency is always a monotonic curve. The change in the critical amplitude curve is shown through the Morris–Lecar model.
- 合写作者：
- Yong Xie , Jian-Xue Xu , Yan-Mei Kang
- 卷号：
- 10(7)
- 页面范围：
- 823-832
- 是否译文：
- 否
- 发表时间：
- 2004-06-24