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Article: Identified ankle extensor and flexor motoneurons display different firing profiles in the neonatal rat.

Full Text (publisher's website) ; Article Metadata ; Article Data (extracted)
Cotel F; Antri M; Barthe JY; Orsal D
J. Neurosci., 2009


Table 1.

Summary of F-MN and E-MN properties

Motoneuron properties Flexor Extensor p0.9 5
Spike amplitude (mV) 79.0 ± 1.4 (19) 86.3 ± 1.8 (21) p < 0.01
Spike width (ms) 1.3 ± 0.3 (18) 1.2 ± 0.2 (21) NS
AHP amplitude (mV) 1.7 ± 1.5 (14) 3.6 ± 1.5 (13) p < 0.01
AHP half-decay time (ms) 31.8 ± 3.4 (14) 36.1 ± 9.9 (14) NS
Rheobase (nA) 1.3 ± 0.1 (20) 1.6 ± 0.1 (23) NS
Input resistance (MΩ) 20.8 ± 1.9 (16) 19.9 ± 1.9 (19) NS
ePIC (nA) 0.46 ± 0.04 (20) 0.05 ± 0.02 (23) p < 0.001
F–I slope (Hz/nA) 20.4 ± 0.8 (20) 12.3 ± 0.8 (23) p < 0.001

  • Values are means ± SEM. Number of motoneurons is indicated in parentheses. NS, Not significant, unpaired t test.


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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 motor neuron alpha spinal cord lumbar flexor motorneuron AHP amplitude (mV) 1.7 ± 1.5 1.7 (mV) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron AHP amplitude (mV) 3.6 ± 1.5 3.6 (mV) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron other (ms) 31.8 ± 3.4 31.8 (None) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron other (ms) 36.1 ± 9.9 36.1 (None) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron rheobase (nA) 1.3 ± 0.1 1300.0 (pA) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron rheobase (nA) 1.6 ± 0.1 1600.0 (pA) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron spike amplitude (mV) 79.0 ± 1.4 79.0 (mV) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron input resistance (MΩ) 20.8 ± 1.9 20.8 (MΩ) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron input resistance (MΩ) 19.9 ± 1.9 19.9 (MΩ) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron other (nA) 0.46 ± 0.04 0.46 (None) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron other (nA) 0.05 ± 0.02 0.05 (None) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron spike amplitude (mV) 86.3 ± 1.8 86.3 (mV) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron FI slope (Hz/nA) 20.4 ± 0.8 20.4 (Hz/nA) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron FI slope (Hz/nA) 12.3 ± 0.8 12.3 (Hz/nA) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar flexor motorneuron spike half-width (ms) 1.3 ± 0.3 1.3 (ms) Data Table
Spinal cord ventral horn motor neuron alpha spinal cord lumbar extensor motorneuron spike half-width (ms) 1.2 ± 0.2 1.2 (ms) Data Table