Table 2.

Dendritic membrane properties of CA1 pyramidal neurons

Rat Vm (mV) Rinω (M&OHgr;) Spike ampl (mV) Spike width (msec) Spike boosting (%) F-dep prop (%)
SP (4) -69 ± 2 28 ± 4* 41 ± 5 1.4 ± 0.02* 186 ± 12 58 ± 4
Control (4) -71 ± 1 40 ± 2 42 ± 4 2.4 ± 0.02 190 ± 20 60 ± 4
  • Dendritic recordings from 250-275 μm distant to soma. Vm′ Resting membrane potential; Rin′ input resistance; Spike, dendritic action potential; ampl, amplitude from Vm′ width at half-maximum amplitude; boosting is increase in spike amplitude when paired with a 10-15 mV dendritic depolarization; F-dep prop, frequency dependent propagation as the amplitude of 10th spike in a train divided by the amplitude of the first spike for 30 Hz antidromic stimulation. *p<0.01.