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. Author manuscript; available in PMC: 2008 Jan 26.
Published in final edited form as: Brain Res. 2006 Dec 13;1130(1):103–107. doi: 10.1016/j.brainres.2006.10.037

Table 1.

Biophysical properties of CA1 neurons recorded from aged/young male F 344 rats.

Aged IR (MΩ) RMP Spike Amplitude
IC (20) 36.6 ± 2.47 −61 ± 1.18 84.4 ± 1.03
EC (21) 41.8 ± 4.64 −63 ± 1.15 83.1 ± 0.81
Young
IC (40) 38.9 ± 2.36 −62 ± 0.78 84.0 ± 0.78
EC (37) 46.2 ± 3.49 −65 ± 0.84 81.9 ± 1.31

Values are ± SEM. IC, individual cage, EC, enriched conditions, RMP, resting membrane potential, IR, Input resistance; RMP and spike amplitude values are in mV. Numbers in parentheses indicate number of cells for each condition.