(A) A typical MSN labeled by neurobiotin. Scale bar, 40 μm.
(B) Representative current-clamp recordings of MSNs from wild-type (WT, black) and homozygous (HOM) Scn2agt/gt (blue) mice were obtained at the RMP. Inset: representative trace in response to +350 pA injection.
(C) The average number of action potentials (APs) generated in response to depolarizing current pulses. Unpaired two-tailed non-parametric Mann-Whitney U test for each current pulse.
(D) Individuals and mean RMP values. Unpaired t test.
(Ei) Representative traces in response to −100 pA injection. Vsteady-state (Vss) is the voltage recorded 0–10 ms before the end of the stimulus.
(Eii) Individuals and mean input resistance values at the RMP. Unpaired t test.
(F) Typical spikes of MSNs from WT (black) and HOM (blue) mice were obtained at the normal RMP.
(G) Associated phase-plane plots.
(H–L) Individual and mean spike rheobase, voltage threshold, amplitude, fast after-hyperpolarization (AHP), and half-width values. Unpaired t test. Data are shown as mean ± SEM.