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Article: Dynamics of action potential firing in electrically connected striatal fast-spiking interneurons.

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Russo G; Nieus TR; Maggi S; Taverna S
Front Cell Neurosci, 2013


Electrophysiological properties of striatal FSIs.

Bursting (n = 140) Irregular (n = 77) Regular (n = 46)
Resting membrane potential (mV) -74 ± 0.5 -74 ± 0.6 -76 ± 1
Input resistance (MΩ) 60 ± 2 63 ± 3 59 ± 5
Membrane time constant (ms) 9.8 ± 0.2 9.5 ± 0.4 9.3 ± 0.4
AP peak amplitude (mV) 60 ± 1 55 ± 2 58 ± 2
AP threshold (mV) -45 ± 0.6 -43 ± 0.5 -46 ± 1
AP width (ms) 0.54 ± 0.01 0.56 ± 0.01 0.55 ± 0.02
AP time to peak (ms) 0.44 ± 0.01 0.46 ± 0.01 0.46 ± 0.02
AHP amplitude (mV) 15 ± 0.4 14 ± 0.5 13 ± 0.7

All values are means ± s.e.m. Input resistance and membrane time constant were measured on passive voltage responses to injection of negative current pulses (-100 pA, 500 ms). Action potentials (APs) were elicited by injection of suprathreshold current pulses (400 pA, 500 ms). AHP: afterhyperpolarization. AP time to peak and AHP were calculated using the spike threshold as a reference point.
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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron membrane time constant (ms) 9.8 ± 0.2 (140) 9.8 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron membrane time constant (ms) 9.5 ± 0.4 (77) 9.5 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron membrane time constant (ms) 9.3 ± 0.4 (46) 9.3 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron spike amplitude (mV) 60.0 ± 1.0 (140) 60.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron spike amplitude (mV) 55.0 ± 2.0 (77) 55.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron spike amplitude (mV) 58.0 ± 2.0 (46) 58.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron spike threshold (mV) -45.0 ± 0.6 (140) -45.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron spike threshold (mV) -43.0 ± 0.5 (77) -43.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron resting membrane potential (mV) -74.0 ± 0.5 (140) -74.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron spike threshold (mV) -46.0 ± 1.0 (46) -46.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron spike half-width (ms) 0.54 ± 0.01 (140) 0.54 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron spike half-width (ms) 0.56 ± 0.01 (77) 0.56 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron spike half-width (ms) 0.55 ± 0.02 (46) 0.55 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron spike rise time (ms) 0.44 ± 0.01 (140) 0.44 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron spike rise time (ms) 0.46 ± 0.01 (77) 0.46 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron spike rise time (ms) 0.46 ± 0.02 (46) 0.46 (ms) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron resting membrane potential (mV) -74.0 ± 0.6 (77) -74.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron AHP amplitude (mV) 15.0 ± 0.4 (140) 15.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron AHP amplitude (mV) 14.0 ± 0.5 (77) 14.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron AHP amplitude (mV) 13.0 ± 0.7 (46) 13.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron resting membrane potential (mV) -76.0 ± 1.0 (46) -76.0 (mV) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing bursting GABAergic interneuron input resistance (MΩ) 60.0 ± 2.0 (140) 60.0 (MΩ) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing irregular bursting GABAergic interneuron input resistance (MΩ) 63.0 ± 3.0 (77) 63.0 (MΩ) Data Table
Neostriatum gabaergic interneuron Neostriatum parvalbumin-expressing regular spiking GABAergic interneuron input resistance (MΩ) 59.0 ± 5.0 (46) 59.0 (MΩ) Data Table