Information in a Network of Neuronal Cells: Effect of Cell Density and Short-Term Depression

Figure 3

The entire grid is stimulated with a signal that can be random (a) or periodic (b). From a random long sample of stimuli, one may derive the total entropy of the spike train. Similarly, the noise entropy is the variability of the spike train in response to the sample of repeated stimuli. Information is as the difference between the total and the noise entropy.

(a)

(b)