Article (Scientific journals)
Synchronization, Oscillator Death, and Frequency Modulation in a Class of Biologically Inspired Coupled Oscillators
Franci, Alessio; Herrera-Valdez, Marco Arieli; Lara-Aparicio, Miguel et al.
2018In Frontiers in Applied Mathematics and Statistics, 4
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Keywords :
circadian rhythm; coupled non-linear oscillators; Fokker-Planck; oscillator death; synchronization; Statistics and Probability; Applied Mathematics
Abstract :
[en] The general purpose of this paper is to build up on our understanding of the basic mathematical principles that underlie the emergence of synchronous biological rhythms, in particular, the circadian clock. To do so, we study the role that the coupling strength, coupling type, and noise play in the synchronization of a system of coupled, non-linear oscillators. First, we study a deterministic model based on Van der Pol coupled oscillators, modeling a population of diffusively coupled cells, to find regions in the parameter space for which synchronous oscillations emerge and to provide conditions under which diffusive coupling kills the synchronous oscillation. Second, we study how noise and coupling interact and lead to synchronous oscillations in linearly coupled oscillators, modeling the interaction between various pacemaker populations, each having an endogenous circadian clock. To do so, we use the Fokker-Planck equation associated to the system. We show how coupling can tune the frequency of the emergent synchronous oscillation, which provides a general mechanism to make fast (ultradian) pacemakers slow (circadian) and synchronous via coupling. The basic mechanisms behind the generation of oscillations and the emergence of synchrony that we describe here can be used to guide further studies of coupled oscillations in biophysical non-linear models.
Disciplines :
Mathematics
Author, co-author :
Franci, Alessio  ;  Université de Liège - ULiège > Département d'électricité, électronique et informatique (Institut Montefiore) > Brain-Inspired Computing ; Departamento de Matemáticas, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
Herrera-Valdez, Marco Arieli;  Departamento de Matemáticas, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
Lara-Aparicio, Miguel;  Departamento de Matemáticas, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
Padilla-Longoria, Pablo;  Departamento de Matemáticas y Mecánica, Instituto de Investigación en Matemáticas Aplicadas y Sistemas, Universidad Nacional Autónoma de Mexico, Mexico City, Mexico
Language :
English
Title :
Synchronization, Oscillator Death, and Frequency Modulation in a Class of Biologically Inspired Coupled Oscillators
Publication date :
08 November 2018
Journal title :
Frontiers in Applied Mathematics and Statistics
eISSN :
2297-4687
Publisher :
Frontiers Media S.A.
Volume :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
UNAM - Universidad Nacional Autónoma de México [MX]
Funding text :
Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
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