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Article: Function of specific K(+) channels in sustained high-frequency firing of fast-spiking neocortical interneurons.

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Erisir A; Lau D; Rudy B; Leonard CS
J. Neurophysiol., 1999


Table 1.

Significance levels and within group comparisons

P FS RS
Resting potential, mV −60.6  ±  1.9 −61.5  ±  2.1
Input resistance, MΩ * 110.4  ±  11 141.1  ±  12.4
Spike amplitude, mV † 78.5  ±  2.5 90.4  ±  1.8
AHP amplitude, mV † −16.4  ±  1.2 −0.2  ±  0.7
Depolarization slope, mV/ms * 290.9  ±  17.9 255.2  ±  12.0
Repolarization slope, 1st spike † −161.5  ±  13.9 −43.3  ±  2.3
Repolarization slope, 2nd spike † −142.2  ±  14.1 −28.8  ±  1.8 †
Spike width, ms, 1st spike † 0.60  ±  0.04 1.7  ±  0.6
Spike width, ms, 2nd spike † 0.64  ±  0.04 2.2  ±  0.1 †
Maximum SS firing rate, Hz † 123.2  ±  11.1 24.9  ±  1.1
A200 † 0.34  ±  0.02 0.75  ±  0.01

  • Significance levels between the FS and RS groups are indicated inP. Within group comparisons are indicated by brackets. Number of cells in FS is 19 and in RS is 37. FS, fast spiking; RS, regular spiking; AHP, afterhyperpolarization; SS, steady-state. *P < 0.05. † P < 0.001.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron spike amplitude (mV) 78.5 ± 2.5 (19) 78.5 (mV) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron spike amplitude (mV) 90.4 ± 1.8 (37) 90.4 (mV) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron AHP amplitude (mV) -16.4 ± 1.2 (19) 16.4 (mV) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron AHP amplitude (mV) -0.2 ± 0.7 (37) 0.2 (mV) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron spike rise time (mV/ms) 290.9 ± 17.9 (19) -- Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron spike rise time (mV/ms) 255.2 ± 12.0 (37) -- Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron spike decay time -161.5 ± 13.9 (19) -- Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron spike decay time -43.3 ± 2.3 (37) -- Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron resting membrane potential (mV) -60.6 ± 1.9 (19) -60.6 (mV) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron spike half-width (ms) 0.6 ± 0.04 (19) 0.6 (ms) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron spike half-width (ms) 1.7 ± 0.6 (37) 1.7 (ms) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron maximum firing rate (Hz) 123.2 ± 11.1 (19) 123.2 (Hz) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron resting membrane potential (mV) -61.5 ± 2.1 (37) -61.5 (mV) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron maximum firing rate (Hz) 24.9 ± 1.1 (37) 24.9 (Hz) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron adaptation ratio (1 – first/last ISI) 0.34 ± 0.02 (19) 0.34 (ratio) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron adaptation ratio (1 – first/last ISI) 0.75 ± 0.01 (37) 0.75 (ratio) Data Table
Neocortex basket cell somatosensory cortex layer 2-3 GABAergic fast-spiking interneuron input resistance (MΩ) 110.4 ± 11.0 (19) 110.4 (MΩ) Data Table
Neocortex Martinotti cell somatosensory cortex layer 2-3 regular-spiking non-pyramidal GABAergic interneuron input resistance (MΩ) 141.1 ± 12.4 (37) 141.1 (MΩ) Data Table