Extended Data Fig. 5: Average number of active neighbors.
From: Fish shoals resemble a stochastic excitable system driven by environmental perturbations
Scheme of the computation of the average number of active neighbor cells for a given set of focal cells. The times ti represent the randomly selected times at which a set of 8 focal cells are randomly selected. The focal cells are depicted in red. We computed the number of active neighboring cells for each focal cell and averaged over all focal cells and over all randomly selected times ti. The value obtained from the empirical videos is \({\mathcal{N}}\)emp = 0.27 ± 0.23.
