Effect of noise on a population of <i>N = 256</i> coupled cells in the oscillation death regime.

<p>The concentration <i>u_i</i> is shown in color code according to the scale of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004872#pone-0004872-g003" target="_blank">Fig. 3</a>. Time runs horizontally from left to right, while the different cells are plotted along the vertical axis, each cell represented by a horizontal line. Simulations were started with random initial conditions, and after a transient of around <i>900</i> time units (in which the oscillations are highly synchronous), two stable clusters emerge. At time <i>t = 1800</i> noise is switched on with intensity <i>σ_a² = 0.4</i>, and this leads to jumps between clusters. Parameters are <i>α₁ = 3</i>, <i>α₂ = 5</i>, <i>α₃ = 1</i>, <i>α₄ = 4</i>, ε = <i>0.05</i>, <i>d = 1</i> and <i>d_e = 30</i>.