Table 1.

Membrane properties of control and CCD neurons measured in whole cell patch clamp experiments

						AP
	No. of Cells	Diameter, μm	Cell Capacitance, pF	Membrane Potential, mV	Input Resistance, MΩ	Rheobase, pA	Voltage threshold, mV	Amplitude, mV	Duration, ms	MS/Non-MS
Control	9	24.4 ± 0.7	18.9 ± 1.1	−54.1 ± 2.6	374.7 ± 70.4	101.7 ± 6.5	−26.8 ± 1.4	105.6 ± 7.4	2.9 ± 0.4	2/7
CCD	8	23.3 ± 1.4	17.3 ± 2.1	−57.0 ± 4.5	346.3 ± 38.4	62.5 ± 9.1†	−33.0 ± 1.5*	103.8 ± 3.7	4.1 ± 0.6	3/5

Values are mean ± SE. CCD, chronic compression; AP, action potential; rheobase, current threshold; MS, number of cells firing multiple (≥2) spikes to current step at 2× rheobase; non-MS, number of cells discharging 1 spike.

^*P < 0.05 and

^†P < 0.01 by Student's t-tests (significant differences between control and CCD neurons).