Tonic cells

Phasic cells

Resting (steady-state) potential

−61  6 mV (n=80)

(−50..−78 mV)

−66 4 mV (n = 5)

(−62..−71 mV)

Input resistance

0.36  0.30 GΩ (n = 74)

(0.06..1.93 GΩ)

0.26  0.07 GΩ (n = 5)

(0.18..0.33 GΩ)

Membrane time constant

20  11ms (n = 74)

( 5..54 ms)

11  3 ms (n = 5)

(8..16 ms)  

Whole cell capacitance

68  30 pF (n = 74)

(11..175 pF)

43  11 pF (n = 5)

(30..54 pF)

Action potential shape parameters:

 

 

Threshold

−59  7 mV (n = 80)

(−39..−75 mV)

−52  7 mV (n = 5)

(−45..−61 mV)

Amplitude

92  12 mV (n = 80)

(56..115 mV)

87  9 mV (n = 5)

(78..99 mV)

Overshoot

33  9 mV (n = 80)

(4 .. 52 mV)

34.4  1.7 mV (n = 5)

(32.8..37.1 mV)

Afterhyperpolarization

−10  8 mV (n = 80)

(13.. −32 mV)

−16  8 mV (n = 5)

(−9.. −27 mV)

Undershoot

−69  6 mV (n = 80)

(−54..−81 mV)

−69  5 mV (n = 5)

(−61..−73 mV)

Width

0.85  0.28 ms (n = 80)

(0.43..1.52 ms)

0.83  0.13 mV (n = 5)

(0.66..0.96 mV)

Depolarization rate

279  121 mV/ms (n = 80)

(93..557 mV/ms)

227  70 mV/ms (n = 5)

(165..323 mV/ms)

Repolarization rate

−148  55 mV/ms (n = 80)

(−52..−278 mV/ms)

−133  23 mV/ms  (n = 5)

(−107..−159 mV/ms)

 

Table. Tonic and phasic cell electrophysiological parameters. In this table values are

means standard deviation. Ranges are also indicated.