نوسانات آمیخته‌گونه در مدل فیتزهو-رینزل

نویسندگان
دانشگاه صنعتی شریف، دانشکدۀ علوم ریاضی
چکیده
یکی از مدل‌های سه‌بعدی مهمی که برای توصیف رفتار سلول عصبی به‌کار گرفته می‌شود، مدل فیتزهو-ناگوما است. در این مقاله ما انواع رفتارهای رگباری و به‌طور خاص نوسانات آمیخته-گونه (MMO) را در این مدل را معرفی می‌کنیم. هم‌چنین در مقادیری از پارامتر در این سیستم کانارد نسبتاً پایداری دیده می‌شود. نکته مهم این پژوهش این است که بر خلاف تحقیقات انجام شده که در آنها رفتار MMO در سیستم‌هایی با دو متغیر کند و یک متغیر تند دیده شده است، سیستم در نظر گرفته شده در این مقاله دارای دو متغیر تند و یک متغیر کند است.



کلیدواژه‌ها

عنوان مقاله English

Mixed Mode Oscillation in FitzHugh-Rinzel Model

نویسندگان English

Mohammad Reza Razvan
Seyed Sheida Shahidi Shadkam
Sharif University of Technology
چکیده English

FitzHugh-Nagumo-Rinzel model is an important model for the dynamics of single neuron. We observed some patterns of Bursting specially Mixed Mode Oscillation (MMO) in this model. In some ranges of parameters we can find a robust canard in this system. These phenomena have been observed by many researchers in systems with one fast variable and two slow variables. The interesting point of our work is that our system has one slow variable and two fast variables../files/site1/files/71/6.pdf

کلیدواژه‌ها English

FitzHugh-Nagumo Model
Mixed Mode Oscillations
Bursting
Canard
1. Rinzel J., "A Formal Classification of Bursting Mechanisms in Excitable Systems", Mathematical Topics in Population Biology, Morphogenesis and Neurosciences. vol 71., (1987) 267-281.## 2. Hodgkin A. L., Huxley A. F, "A quantitative description of membrane current and application to conduction and excitation in nerve", J. Physiol. , 117, (1952) 500-544. ## 3. Channell P., Cymbalyuk G., Shilnikov A, "Origin of Bursting through Homoclinic Spike Adding in a Neuron Model", Phys Rev Lett. 98, (2007) 134101-1. ## 4. Del Negro C. A, Hasiao C. F. Chandler S. H. Garfinkel A., "Evidence for a novel bursting mechanism in rodent trigeminal neurons, Biophys J. (1998) 174-182. ## 5. Desroches M., Guckenheimer J., Krauskopf B., Kuehn Ch., H. M. Osinga, M. Wechselberger, "Mixed-Mode Oscillations with Multiple Time Scales", SIAM Review, Vol. 54, Issue 2, (2012) 211-288. ## 6. Desroches M, Krauskopf B, Osinga H. M, "Mixed-mode oscillations and slow manifolds in the self-coupled FitzHugh-Nagumo system", Chaos 18, An Interdisciplinary Journal of Nonlinear Science, (2008) 15-35. ## 7. E.Izhikevich, Dynamical Systems in Neuroscience: The Geometry of Excitability and Bursting, MIT Press (2007). 8. Wojcik J., Shilnikov A, "Voltage interval mappings for activity transitions in neuron models for elliptic bursters", Physica D: Nonlinear Phenomena, Vol. 240, Issues 14-15, (2011) 1164-1180. ## 9. Lawrence Perko, "Differential Equations and Dynamical Systems".## 10. Ermentrout, G. Bard, Terman, David H, "Mathematical Foundations of Neuroscience, Springer (2010). ## 11. Petrov S. K. S. V., Showalter K., "Mixedmode oscillations in chemical systems," J. Chem. Phys. 97 (1992) 6191–6196. ## 12. Koper M., Gaspard P., "Mlxed-mode and chaotic osclllations in a sim- ple model of an electrochemical oscillator," J. Phys. Chem. 95 (1991) 4945-4947. ## 13. Albahadily J. R. F. N., Schell M., "Mixedmode oscillations in an elec- trochemical system. i. a farey sequence which does not occur on a torus," J. Chemical Physics 90 (1989) 813-821. ## 14. Schell M., Albahadily F. N., "Mixedmode oscillations in an electro- chemical system. ii. a periodic–chaotic sequence," J. Chemical Physics 90 (1989) 822-828. ## 15. Rubin J., Wechselberger M., "The selection of mixed-mode oscillations in a hodgkin-huxley model with multiple timescales," Chaos: An Interdis- ciplinary Journal of Nonlinear Science 18, 015105 (2008). ## 16. Mikikian L. C. Y. T. M., Cavarroc M., Boufendi L., "Mixed-mode os- cillations in complex plasma instabilities," PRL 100, 225005 (2008). ## 17. Roberts M. W. A., Widiasih E., Jones C., "Mixed mode oscillations in a conceptual climate model," Physica D: Nonlinear Phenomena 292–293 (2015) 70-83. ## 18. Hirsch M. W., Pugh C. C., Shub M., "Invariant Manifolds", Part of the Lecture Notes in Mathematics book series (LNM, Vol. 583) Springer (1977). ##