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. 2012 Mar 1;8(3):e1002401. doi: 10.1371/journal.pcbi.1002401

Figure 9. Simultaneous estimation of hidden model states (including intracellular calcium concentrations) and maximal conductances in a two-compartment model of a vertebrate motoneuron (II).

Figure 9

Inference of maximal conductances and noise parameters during fixed-lag smoothing. (A) The standard deviations of the observation (Ai) and the intrinsic (Aii) noise at the soma and the dendrite. (B) Inferred maximal conductances of the sodium and potassium currents at the soma (Bi), of the N-type calcium current and the calcium-activated potassium current at the soma (Bii), of the calcium-activated potassium current at the dendrite (Biii) and of the N-type and L-type calcium currents at the dendrite (Biv). In all cases, parameter expectations gradually converged towards the true parameter values (dashed lines) after less than Inline graphic. The grey lines in Aii, Biii and Biv correspond to estimated parameters, when current was injected in the soma only. In these simulations, Inline graphic, Inline graphic, Inline graphic and the prior interval for Inline graphic was Inline graphic.