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Article: Substantia nigra dopamine regulates synaptic plasticity and membrane potential fluctuations in the rat neostriatum, in vivo.

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Reynolds JN; Wickens JR
Neuroscience, 2000


Table 1Membrane potential activity and cellular properties of spiny neuronsa
ControlDopamine depleted
Membrane potential (mV)*
up state average (μ2)−65.9±7.7−67.3±9.4N.S.
up state standard deviation (σ2)5.3±1.84.3±1.8P<0.05
down state average (μ1)−84.8±6.5−82.8±7.4N.S.
down state standard deviation (σ1)1.6±0.41.4±0.3N.S.
down to up difference18.9±5.015.8±6.9P<0.05
Cellular properties†
Input resistance (MΩ)30.3±13.030.9±9.7N.S.
Firing threshold (mV)−48.3±4.9−50.6±4.9N.S.
Action potential amplitude (mV)74.7±11.672.9±9.9N.S.
Action potential duration (ms)0.61±0.120.61±0.12N.S.
aData are mean±S.D*From all cells in sample (control: n=38; dopamine depleted: n=23).†From subset of cells tested (control: n=33; dopamine depleted: n=15).

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Neostriatum medium spiny neuron Striatum Spiny Neuron other -65.9 ± 7.7 (33) -65.9 (None) Data Table
Neostriatum medium spiny neuron Striatum Spiny Neuron resting membrane potential -84.8 ± 6.5 (33) -84.8 (mV) Data Table
Neostriatum medium spiny neuron Striatum Spiny Neuron input resistance (MΩ) 30.3 ± 13.0 (33) 30.3 (MΩ) Data Table
Neostriatum medium spiny neuron Striatum Spiny Neuron spike threshold (mV) -48.3 ± 4.9 (33) -48.3 (mV) Data Table
Neostriatum medium spiny neuron Striatum Spiny Neuron spike amplitude (mV) 74.7 ± 11.6 (33) 74.7 (mV) Data Table
Neostriatum medium spiny neuron Striatum Spiny Neuron spike half-width (ms) 0.61 ± 0.12 (33) 0.61 (ms) Data Table