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Article: Nigral GABAergic inhibition upon mesencephalic dopaminergic cell groups in rats.

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Saitoh K; Isa T; Takakusaki K
Eur. J. Neurosci., 2004


Table 1.  Electrophysiological membrane properties of the mesencephalic dopaminergic neurons
 RRF (n = 22)SNc (n = 47)VTA (n = 24)All (n = 93)StatisticsProbability

  1. These values were obtained from 93 neurons (22 neurons from the RRF, 47 from the SNc and 24 from the VTA), which had spontaneous firing. Among DA neurons in three nuclei, there was no difference in the electrophysiological properties.

Spike threshold (mV)−52.6 ± 6.0−51.7 ± 5.2−50.6 ± 5.1−51.6 ± 5.41.3260.515
Spike amplitude (mV)77.1 ± 15.672.2 ± 9.872.3 ± 12.173.4 ± 12.01.4890.475
AHP amplitude (mV)22.2 ± 6.220.0 ± 6.220.6 ± 6.920.7 ± 6.41.8880.389
Spike duration (ms)3.9 ± 1.73.7 ± 1.24.0 ± 1.03.8 ± 1.31.9860.370
Spike half duration (ms)1.9 ± 0.81.6 ± 0.51.8 ± 0.51.8 ± 0.64.3870.112

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Other Retrorubral field mesencephalic projecting to striatum dopaminergic neuron spike amplitude (mV) 77.1 ± 15.6 (22) 77.1 (mV) Data Table
Substantia nigra pars compacta dopaminergic cell spike amplitude (mV) 72.2 ± 9.8 (47) 72.2 (mV) Data Table
Ventral tegmental area dopamine neuron spike amplitude (mV) 72.3 ± 12.1 (24) 72.3 (mV) Data Table
Other Retrorubral field mesencephalic projecting to striatum dopaminergic neuron AHP amplitude (mV) 22.2 ± 6.2 (22) 22.2 (mV) Data Table
Substantia nigra pars compacta dopaminergic cell AHP amplitude (mV) 20.0 ± 6.2 (47) 20.0 (mV) Data Table
Ventral tegmental area dopamine neuron AHP amplitude (mV) 20.6 ± 6.9 (24) 20.6 (mV) Data Table
Other Retrorubral field mesencephalic projecting to striatum dopaminergic neuron spike width (ms) 3.9 ± 1.7 (22) 3.9 (ms) Data Table
Substantia nigra pars compacta dopaminergic cell spike width (ms) 3.7 ± 1.2 (47) 3.7 (ms) Data Table
Ventral tegmental area dopamine neuron spike width (ms) 4.0 ± 1.0 (24) 4.0 (ms) Data Table
Other Retrorubral field mesencephalic projecting to striatum dopaminergic neuron spike threshold (mV) -52.6 ± 6.0 (22) -52.6 (mV) Data Table
Other Retrorubral field mesencephalic projecting to striatum dopaminergic neuron spike half-width (ms) 1.9 ± 0.8 (22) 1.9 (ms) Data Table
Substantia nigra pars compacta dopaminergic cell spike half-width (ms) 1.6 ± 0.5 (47) 1.6 (ms) Data Table
Ventral tegmental area dopamine neuron spike half-width (ms) 1.8 ± 0.5 (24) 1.8 (ms) Data Table
Substantia nigra pars compacta dopaminergic cell spike threshold (mV) -51.7 ± 5.2 (47) -51.7 (mV) Data Table
Ventral tegmental area dopamine neuron spike threshold (mV) -50.6 ± 5.1 (24) -50.6 (mV) Data Table