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. 2019 Nov 14;15(11):e1007476. doi: 10.1371/journal.pcbi.1007476

Fig 2. Mutual information when constraining the expected spike count.

Fig 2

A. The mutual information between stimulus and response for any mixture of N ON and OFF cells is identical when constraining the expected spike count, R. B. The optimal threshold intervals for all possible mixtures of ON (red) and OFF (blue) cells in a population of N = 6 cells that achieve the same mutual information about a stimulus from an arbitrary distribution p(s). C. The optimal threshold intervals for the equal ON-OFF mixture in a population of N = 6 cells and different values of R (equivalently, noise); see also D. Top: low noise (RN → ∞); middle: intermediate noise (RN = 1); bottom: high noise (RN → 0). D. The optimal threshold intervals as a function of 1/RN. E. The mean spike count required to transmit the same information (see A) by populations with a different fraction of OFF cells (α), normalized by the mean spike count of the homogeneous population with α = 0. The different curves denote RN = {0.1, 1, 5, 100}.