Table 1.

Half-maximal potentials and slope coefficients

Principal cell populations	Steady-state activation	Steady-state inactivation
Accommodating	V$\frac{1;2}{}$ = −32  ± 3.2 mV,	V$\frac{1;2}{}$ = −61  ± 1.2 mV,
(n = 8)	K = 8.8  ± 0.8 mV	K = 5.1   ± 0.4 mV
Nonaccommodating	V$\frac{1;2}{}$ = −34  ± 3.1 mV,	V$\frac{1;2}{}$ = −62  ± 5 mV,
(n = 4)	K = 6.8  ± 1.0 mV	K = 5.5  ± 0.4 mV
Silent	V$\frac{1;2}{}$ = −35  ± 3.0 mV,	V$\frac{1;2}{}$ = −64  ± 1.3 mV,
(n = 3)	K = 5.7  ± 1.1 mV	K = 4.0  ± 0.8 mV

Half-maximal potentials (V_½) and slope coefficients (K) were obtained by fitting the normalized conductance values for steady-state activation and inactivation of the transient current from different subpopulations of principal cells to the Boltzmann equation (see Fig. 4A,B). The V_½ values include the liquid junction potential and represent means ± SEM. The values ofV_½ and K for steady-state activation and inactivation were not significantly different among the three distinct subpopulations of principal cells investigated (p > 0.05).