A, scatter plot matrix depicting variability in conductance values across 25 wild‐type neuronal models. B, population averaged firing rate profiles obtained from wild‐type and fmr1−/y model population. C–F, population averaged peak voltage (C), threshold (D), half‐width (E) and maximum dV/dt (F) of action potentials in a spike train obtained from wild‐type and fmr1−/y model population. For B–F, data is presented as mean ± SEM (n = 25).