Periodic stimulation of an aggregate of spontaneously beating cultured cardiac ells displays phase locking, period-doubling bifurcations and aperiodic "chaotic " dynamics at different values of the stimulation parameters. This behavior is analyzed by considering an experimentally determined one-dimensional Poincar6 or first return map. A simplified version of the experimentally determined Poincar6 map is proposed, and several features of the bifurcations of this map are described. 1
Coherent relaxation and contraction of the heart muscle is essential for efficiently pumping blood t...
We consider the effect of discrete-time signal or periodically pulsed forcing on chaotic dynamical s...
A series of related new models for the local dynamics of cardiac tissue is introduced. The models ar...
Abstract. A mathematical model for the perturbation of a biological oscillator by single and periodi...
Toad ventricles were externally driven by periodic pulses while monophasic action potential (MAP) si...
Experiments are described in which the electrical activity of a spontaneously beating aggregate of e...
Toad ventricles were externally driven by periodic pulses while monophasic action potential (MAP) si...
Phase-locking behavior and irregular dynamics were studied in a mathematical model of the sinus node...
Abstract Period-doubling bifurcation to chaos were dis-covered in spontaneous firings of Onchidium p...
We compare the dynamics of the periodically forced FitzHugh-Nagumo oscillator in its relaxation regi...
The normal cardiac rhythm can undergo transitions that lead to serious cardiac arrhythmias. In this ...
Bifurcations of periodic, quasi-periodic and chaotic oscillations are most frequently observed in fo...
The response of an excitable neuron to trains of electrical spikes is relevant to the understanding ...
The Duffing driven, damped, softening oscillator has been analyzed for transition through period d...
The observation of biological systems suggests the hypothesis that nonlinear mechanisms could be inv...
Coherent relaxation and contraction of the heart muscle is essential for efficiently pumping blood t...
We consider the effect of discrete-time signal or periodically pulsed forcing on chaotic dynamical s...
A series of related new models for the local dynamics of cardiac tissue is introduced. The models ar...
Abstract. A mathematical model for the perturbation of a biological oscillator by single and periodi...
Toad ventricles were externally driven by periodic pulses while monophasic action potential (MAP) si...
Experiments are described in which the electrical activity of a spontaneously beating aggregate of e...
Toad ventricles were externally driven by periodic pulses while monophasic action potential (MAP) si...
Phase-locking behavior and irregular dynamics were studied in a mathematical model of the sinus node...
Abstract Period-doubling bifurcation to chaos were dis-covered in spontaneous firings of Onchidium p...
We compare the dynamics of the periodically forced FitzHugh-Nagumo oscillator in its relaxation regi...
The normal cardiac rhythm can undergo transitions that lead to serious cardiac arrhythmias. In this ...
Bifurcations of periodic, quasi-periodic and chaotic oscillations are most frequently observed in fo...
The response of an excitable neuron to trains of electrical spikes is relevant to the understanding ...
The Duffing driven, damped, softening oscillator has been analyzed for transition through period d...
The observation of biological systems suggests the hypothesis that nonlinear mechanisms could be inv...
Coherent relaxation and contraction of the heart muscle is essential for efficiently pumping blood t...
We consider the effect of discrete-time signal or periodically pulsed forcing on chaotic dynamical s...
A series of related new models for the local dynamics of cardiac tissue is introduced. The models ar...