Table 2.

Active membrane properties of neurons differentiated from neurospheres.

	Psg	Mean	SEM	N	P
Rheobase (pA)	1	85	10	27	0.03
	2	51	7	16
	3	61	10	12
Threshold (mV)	1	−32	1	27	0.77
	2	−32	2	16
	3	−33	1	12
HWHM (ms)	1	1.6	0.1	27	0.78
	2	1.5	0.1	16
	3	1.6	0.2	12
Peak rise rate (mV/s)	1	55	6	27	0.83
	2	58	7	16
	3	52	5	12
Peak decay rate (mV/s)	1	−21	2	27	0.78
	2	−22	2	16
	3	−23	2	12

Neurons from passage 2 had a lower action potential threshold than those from passage 1 (P = 0.03 ANOVA with Tukey’s post hoc comparison).