Table 2

Comparison of resting membrane potential, membrane resistance, amplitude and half-width of spikes, sAHP, and spike-frequency adaptation of mPFC cells in preparations from the rats that received subchronic treatment with vehicle and PCP (1 week/48 to 60 h), respectively

ConditionsResting Membrane PotentialMembrane ResistanceSpike AmplitudeSpike half-widthsAHP2-aSpike-Frequency Adaptation2-b
mV mV ms mV
Vehicle (n = 23)−72.7  ± 0.554.5  ± 3.590.3  ± 1.71.2  ± 0.15.8  ± 0.63.3  ± 0.2
PCP (n = 29)−69.5  ± 0.62-150 46.4  ± 2.888.1  ± 1.51.1  ± 0.13.4  ± 0.32-150 5.1  ± 0.52-150
  • 2-a Cells were held at −65 mV; sAHP was obtained by passing 0.1 nA through the recording microelectrode.

  • 2-b Number of action potentials which were evoked by a depolarizing pulse 0.5 nA, 600 ms; cells were held at −70 mV.

  • 2-150  Significantly different from those of the vehicle control group (p < .05, t tests with Bonferroni’s correction).