Spiral-wave turbulence and its control in the presence of inhomogeneities in four mathematical models of cardiac tissue

TK Shajahan, AR Nayak, R Pandit - PLOS one, 2009 - journals.plos.org
Regular electrical activation waves in cardiac tissue lead to the rhythmic contraction and
expansion of the heart that ensures blood supply to the whole body. Irregularities in the …

Wave-train-induced termination of weakly anchored vortices in excitable media

A Pumir, S Sinha, S Sridhar, M Argentina… - Physical Review E …, 2010 - APS
A free vortex in excitable media can be displaced and removed by a wave train. However,
simple physical arguments suggest that vortices anchored to large inexcitable obstacles …

Modified Morris–Lecar neuron model: effects of very low frequency electric fields and of magnetic fields on the local and network dynamics of an excitable media

K Rajagopal, I Moroz, B Ramakrishnan, A Karthikeyn… - Nonlinear …, 2021 - Springer
A Morris–Lecar neuron model is considered with electric and magnetic field effects where
the electric field is a time-varying sinusoid and magnetic field is simulated using an …

[图书][B] Patterns in excitable media: Genesis, dynamics, and control

S Sinha, S Sridhar - 2014 - books.google.com
Excitable media comprise a class of models for a wide range of physical, chemical, and
biological systems that exhibit spontaneous formation of spatial patterns. Patterns in …

Control of the chirality of spiral waves and recreation of spatial excitation patterns through optogenetics

TC Li, W Zhong, B Ai, AV Panfilov, H Dierckx - Physical Review E, 2022 - APS
Spiral waves lead to dangerous arrhythmias in the cardiac system. In 2015 Burton et al.
demonstrated the reversal of the spiral wave chirality through the rotating spiral-shaped …

Robustness and breakup of the spiral wave in a two-dimensional lattice network of neurons

J Ma, J Tang, AH Zhang, Y Jia - Science China Physics, Mechanics and …, 2010 - Springer
The robustness and breakup of spiral wave in a two-dimensional lattice networks of neurons
are investigated. The effect of small-world type connection is often simplified with local …

Termination of pinned spirals by local stimuli

JX Chen, MM Guo, J Ma - Europhysics Letters, 2016 - iopscience.iop.org
The termination of pinned spirals on a defect by means of local stimuli is studied. On a
completely unexcitable defect, the elimination process is discussed and its corresponding …

Scroll-wave dynamics in human cardiac tissue: lessons from a mathematical model with inhomogeneities and fiber architecture

R Majumder, AR Nayak, R Pandit - PLOS one, 2011 - journals.plos.org
Cardiac arrhythmias, such as ventricular tachycardia (VT) and ventricular fibrillation (VF), are
among the leading causes of death in the industrialized world. These are associated with …

Anomalous drift of spiral waves in heterogeneous excitable media

S Sridhar, S Sinha, AV Panfilov - … Review E—Statistical, Nonlinear, and Soft …, 2010 - APS
We study the drift of spiral waves in a simple model of heterogeneous excitable medium,
having gradients in the distribution of ion-channel expression or cellular coupling. We report …

A hybrid stimulation strategy for suppression of spiral waves in cardiac tissue

B Xu, S Jacquir, G Laurent, JM Bilbault… - Chaos, Solitons & …, 2011 - Elsevier
Atrial fibrillation (AF) is the most common cardiac arrhythmia whose mechanisms are
thought to be mainly due to the self perpetuation of spiral waves (SW). To date, available …