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Spatial Trigger Waves: Positive Feedback Gets You a Long Way

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Journal Mol Biol Cell
Date 2014 Nov 5
PMID 25368427
Citations 58
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Abstract

Trigger waves are a recurring biological phenomenon involved in transmitting information quickly and reliably over large distances. Well-characterized examples include action potentials propagating along the axon of a neuron, calcium waves in various tissues, and mitotic waves in Xenopus eggs. Here we use the FitzHugh-Nagumo model, a simple model inspired by the action potential that is widely used in physics and theoretical biology, to examine different types of trigger waves-spatial switches, pulses, and oscillations-and to show how they arise.

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