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Article: Firing and cellular properties of V2a interneurons in the rodent spinal cord.

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Dougherty KJ; Kiehn O
J. Neurosci., 2010


Table 1.

Comparison of membrane properties among different firing types

Tonic(n = 62) Burst-tonic(n = 12) Delay(n = 9) Initial burst(n = 21) Chattering(n = 33) Single spike(n = 27)
Vm (mV) −47 ± 1 −51 ± 1 −49 ± 2 −48 ± 2 −51 ± 1 −49 ± 2
Rin (pA) 1590 ± 146 557 ± 79* 986 ± 212 1234 ± 263 903 ± 119 849 ± 149
τ (ms) 55 ± 3* 37 ± 3 36 ± 8 35 ± 4 31 ± 4 18 ± 3*
C (pF) 45 ± 3 73 ± 6* 43 ± 8 40 ± 4 41 ± 4 23 ± 2
Peak outward current (pA) 1472 ± 75 1870 ± 202 1739 ± 314 1483 ± 110 1398 ± 118 1403 ± 149
Peak inward current (pA) −1249 ± 32 −1859 ± 162 −1111 ± 259 −1002 ± 97 −1016 ± 84 −805 ± 73
Rheobase (pA) 14 ± 2* 23 ± 2 34 ± 11 30 ± 5 41 ± 5 80 ± 16*
Spike height (mV) 53 ± 1 59 ± 2 47 ± 4 47 ± 2 47 ± 2 44 ± 2
Overshoot (mV) 19 ± 1 24 ± 2 14 ± 4 14 ± 1 11 ± 2 6 ± 2
Threshold (mV) −42 ± 0.5 −41 ± 1 −40 ± 4 −40 ± 1 −40 ± 1 −41 ± 1

  • Values represent mean ± SE.

  • ↵*Significance at p < 0.05.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Spinal cord ventral horn interneuron V2 membrane time constant (ms) 55.0 ± 3.0 (62) 55.0 (ms) Data Table
Spinal cord ventral horn interneuron V2 resting membrane potential (mV) -47.0 ± 1.0 (62) -47.0 (mV) Data Table
Spinal cord ventral horn interneuron V2 cell capacitance (pF) 45.0 ± 3.0 (62) 45.0 (pF) Data Table
Spinal cord ventral horn interneuron V2 rheobase (pA) 14.0 ± 2.0 (62) 14.0 (pA) Data Table
Spinal cord ventral horn interneuron V2 spike amplitude (mV) 53.0 ± 1.0 (62) 53.0 (mV) Data Table
Spinal cord ventral horn interneuron V2 spike peak (mV) 19.0 ± 1.0 (62) 19.0 (mV) Data Table
Spinal cord ventral horn interneuron V2 spike threshold (mV) -42.0 ± 0.5 (62) -42.0 (mV) Data Table
Spinal cord ventral horn interneuron V2 input resistance (pA) 1590.0 ± 146.0 (62) 1590.0 (MΩ) Data Table