Table 1 Membrane properties measured in ACSF and I _h occurrence in relation to age

V _m [mV]

−58.2 ± 2.4 (n = 16)

−60.5 ± 1.7 (n = 42)

−62.8 ± 1.2 (n = 13)

−68.4 ± 0.9 (n = 25)

R _in [MΩ]

2756 ± 357.4 (n = 16)

2204 ± 254.6 (n = 42)

895.0 ± 45.0 (n = 13)

99.2 ± 6.5 (n = 25)

C [pF]

35.3 ± 3.6 (n = 16)

44.4 ± 1.7 (n = 50)

66.8 ± 2.9 (n = 17)

167.3 ± 9.4 (n = 35)

I _h presence

11 out of 23 (48%)

80 out of 106 (75%)

29 out of 31 (94%)

All, n = 39 (100%)