Table 2.

Summary of Resting Membrane Potential and Input Resistance

Age	Genotype	N (cells)	Membrane potential Mean (mV)	Input Resistance Mean (MΩ)
1.5 months	tau−/−	25	−68.8±1.8*	278.7±28.4MΩ
	htau	26	−71.1±1.8	288.5±27.8MΩ
	control	25	−72.1±2.1	265.6±33.1MΩ
4 months	tau−/−	35	−70.1±1.9	287.4±22.5MΩ
	htau	24	−70.8±1.7	278.4±32.4MΩ
	control	19	−70.3±2.1	276.9±22.1MΩ
9 months	tau−/−	30	−73.9±1.3 †ǂ	236.4±15.3MΩ †ǂ
	htau	28	−73.2±1.7	227.1±17.4MΩ †ǂ
	control	18	−73.8±1.7ǂ	234.1±21.5MΩ

^*significant difference versus control.

^†significant difference versus 1.5 month.

^ǂsignificant difference versus 4 month.