Figure 1

A map of bursting activities derived from multiple simulations of the excitatory neuron population and presented in a 2D parameter space (g _tonic , ), where g _tonic is the external excitatory drive to all neurons, N is the number of neurons in the population, and is the average weight of mutual excitatory synaptic interactions within the population. Bursting activities involving different mechanisms are distinguished by color. The area for I _NaP -dependent population bursting is shown blue; the area in which population bursting may be based on either I _NaP or I _CAN is shown green; the area in which population bursting may exist without both of these currents is shown gray; an additional area (brown) represents an unstable I _CAN -dependent bursting.