Fitting results.

<p>The optimization results for all cells are shown for three parameters: high voltage slope (<b>a</b>), low voltage slope (<b>b</b>) and time constant (<b>c</b>). Blue bars correspond to mean ± standard deviation over all recordings categorized by average membrane potential, and red bars (when available) correspond to mean ± standard deviation over all recordings categorized by stimulus condition (e.g. varying ITD with fixed IID). <b>d</b>, Distribution of average distance within cells between steady-state threshold functions (grey) and between steady-state threshold functions and the diagonal (green). <b>e</b>, Distribution of false alarm rates when the models are tested against recordings with a different mean (blue) and with different sound stimulation (red) than used for fitting. <b>f</b>, Same as (d) for the explained variance of measured spike threshold.