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Stimulation of unidirectional pulses in excitable systems
M Friedman1, I E Ovsyshcher, I Fleidervish
1Physics Department, NRCN, P. O. Box 9001, Beer Sheva, Israel.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 17, 2004
Abstract:
Using a judicious spatial shape of input current pulses (and electrodes), responses of an excitable system (FitzHugh-Nagumo) appear as unidirectional pulses (UDP's) instead of bidirectional ones (in one dimension) or circular ones (in two dimensions). The importance of the UDP's for a possible mechanism for pinpointing the reentry cycle position and for a possible use in tachycardia suppression is discussed.