Ion channel noise shapes the electrical activity of endocrine cells
Fig 2
The bursting fraction against total BK conductance.
In the deterministic model (dashed curve), the bursting fraction (BF) shows a sharp jump from pure spiking (BF = 0) to pure bursting (BF = 1) at a critical value of gBK. However, with channel noise (solid curve), this step function is smoothed out and no longer reaches pure bursting even for large gBK. Here, g1,BK has been fixed throughout so that gBK is proportional to NBK. Note that NBK values only have a physical meaning in the stochastic model.