Table 1.

Electrophysiological properties for developing CA1 pyramidal neurons

	P5–10	P15–20	P25–30	P60–100	P Value
Resting membrane potential, mV	−73.4 ± 0.5	−72.7 ± 0.5	−73.3 ± 0.4	−73.8 ± 0.6	0.6
Input resistance, MΩ	318.3 ± 11.1*	222.9 ± 8.9†	160.7 ± 7.6‡	156.2 ± 4.1‡	<0.0001
Spike amplitude, mV	75.5 ± 1.3*	83.0 ± 2.5†	91.8 ± 1.9‡	82.5 ± 1.6†	<0.0001

Values are means ± SE at postnatal days 5–10 (P5–10; n = 62), P15–20 (n = 35), P25–30 (n = 33), and P60–100 (n = 35). P values were determined by 1-way ANOVA. *†‡Different symbols indicate statistically significant differences among data sets (Tukey's post hoc test).