2004
DOI: 10.1016/j.physa.2004.02.058
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Rhythm synchronization and chaotic modulation of coupled Van der Pol oscillators in a model for the heartbeat

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Cited by 79 publications
(64 citation statements)
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“…Um dos resultados mais notáveis obtidos a partir desse modelo elétrico do coração foi a existência de bloqueios sino-auriculares: o nódulo SA pára temporariamente de emitir impulsos elétricos e depois retornaà atividade normal. O trabalho de Van der Pol e Van der Mark foi o ponto de partida de uma linha de investigação que continua até hoje, o estudo dos ritmos cardíacos (tanto normais como patológicos) por meio de sistemas de osciladores de relaxação acoplados [22,23,25].…”
Section: Van Der Pol E Os Batimentos Cardía-cosunclassified
“…Um dos resultados mais notáveis obtidos a partir desse modelo elétrico do coração foi a existência de bloqueios sino-auriculares: o nódulo SA pára temporariamente de emitir impulsos elétricos e depois retornaà atividade normal. O trabalho de Van der Pol e Van der Mark foi o ponto de partida de uma linha de investigação que continua até hoje, o estudo dos ritmos cardíacos (tanto normais como patológicos) por meio de sistemas de osciladores de relaxação acoplados [22,23,25].…”
Section: Van Der Pol E Os Batimentos Cardía-cosunclassified
“…In [31], it was shown that in a network of coupled van der Pol oscillators representing individual heart cells, one group of coupled oscillators could represent the right atrium called sino-atrial node. This cell aggregate generates the normal cardiac rhythm.…”
Section: A Network Of Coupled Van Der Pol Oscillatorsmentioning
confidence: 99%
“…In addition, there is another pacemaker, the atrio-ventricular node, which takes over when the former fails to perform well. As discussed in [31], this node could be represented by the other group and both groups interact with each other. Investigating conditions for synchrony of the two heart cell aggregates is of major importance as unsynchronised behaviour is associated with cardiac dysrhythmia, a life threatening heart disease.…”
Section: A Network Of Coupled Van Der Pol Oscillatorsmentioning
confidence: 99%
“…Considering the complexity of coupled oscillators system, this fact can be explained by relation between coupling terms or by quasiperiodic response of the system. According to Santos et al (2004), a great variation between coupling terms, with one of them approaching to zero, makes the system presents practically a unidirectional coupling, and consequently the response in bifurcation diagram is represented by a cloud of points, characterizing not only the presence of periodic and chaotic orbits, as also pseudotrajectories. More details about this subject can be seen in Grebogi et al (2002).…”
Section: Dynamical Analysis Of the Oscillators Systemmentioning
confidence: 99%