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Article: Electrophysiological characterization of V2a interneurons and their locomotor-related activity in the neonatal mouse spinal cord.

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Zhong G; Droho S; Crone SA; Dietz S; Kwan AC; Webb WW; Sharma K; Harris-Warrick RM
J. Neurosci., 2010


Table 1.

The membrane properties of three different populations of V2a interneurons

Tonic (n = 82) Phasic (n = 29) Delay-like (n = 10) p value
Em (mV) −46.4 ± 4.6 −48.7 ± 5.2 −50.1 ± 6.3 0.112
Rin (Mf1) 1034 ± 243 1603 ± 378 713 ± 147 0.008
Cf (pF) 23.6 ± 16.2 19.5 ± 10.4 25.6 ± 11.8 0.105
Rheobase (pA) 14.8 ± 7.9 12.5 ± 10.1 24.1 ± 14.3 0.004
AP amplitude (mV) 26.7 ± 6.9 21.8 ± 8.7 23.9 ± 9.5 0.143
AP half-width (ms) 2.4 ± 0.5 3.4 ± 0.7 2.6 ± 0.8 0.032
AP threshold (mV) −32.2 ± 4.4 −29.6 ± 6.8 −27.5 ± 5.4 0.096
AHP amplitude (mV) 18.7 ± 4.1 15.8 ± 6.1 16.1 ± 6.4 0.168
  • p values indicate the level of significance of one-way ANOVAs. Results of post hoc Tukey tests are indicated in Results. AP, Action potential; Em, membrane potential; Rin, input resistance; Cf, membrane capacitance.


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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 cell capacitance (pF) 23.6 ± 16.2 (82) 23.6 (pF) Data Table
Spinal cord ventral horn interneuron V2 rheobase (pA) 14.8 ± 7.9 (82) 14.8 (pA) Data Table
Spinal cord ventral horn interneuron V2 resting membrane potential (mV) -46.4 ± 4.6 (82) -46.4 (mV) Data Table
Spinal cord ventral horn interneuron V2 spike amplitude (mV) 26.7 ± 6.9 (82) 26.7 (mV) Data Table
Spinal cord ventral horn interneuron V2 spike half-width (ms) 2.4 ± 0.5 (82) 2.4 (ms) Data Table
Spinal cord ventral horn interneuron V2 spike threshold (mV) -32.2 ± 4.4 (82) -32.2 (mV) Data Table
Spinal cord ventral horn interneuron V2 AHP amplitude (mV) 18.7 ± 4.1 (82) 18.7 (mV) Data Table
Spinal cord ventral horn interneuron V2 input resistance 1034.0 ± 243.0 (82) 1034.0 (MΩ) Data Table