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Flexible neural connectivity under constraints on total connection strength

Fig 4

Mushroom body output neuron degree distributions in larval D. melanogaster.

(a) Number of inputs to MBONs. Shaded histograms: empirical distribution. Black curve: the marginal simplex area distribution at the maximum likelihood value of α, after integrating out the number of synapses against its empirical distribution. Blue curve: the maximum likelihood binomial distribution. (b) Lower bound for the log evidence ratio (log odds) for the fixed net weight and binomial wiring models. Positive numbers favor the fixed weight model. Evidences computed by a Laplace approximation of the marginalization over the parameters. (c) Likelihood vs model parameter for the fixed net weight (black) and binomial (blue) models).

doi: https://doi.org/10.1371/journal.pcbi.1008080.g004