کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10414310 | 896529 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability Critical amplitude curves for different periodic stimuli and different dynamical mechanisms of excitability](/preview/png/10414310.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 10, Issue 7, October 2005, Pages 823-832
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 10, Issue 7, October 2005, Pages 823-832
نویسندگان
Yong Xie, Jian-Xue Xu, Yan-Mei Kang, San-Jue Hu, Yu-Bin Duan,