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Article: Electrophysiological classes of cat primary visual cortical neurons in vivo as revealed by quantitative analyses.

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Nowak LG; Azouz R; Sanchez-Vives MV; Gray CM; McCormick DA
J. Neurophysiol., 2003


Table 1.

Input resistance and time constant, main classes

1—Regular Spiking (n = 33) 2—Fast Spiking (n = 12) 3—Intrinsically Bursting (n = 12) 4—Chattering (n = 11)
Input resistance (MΩ) 51.3 ± 17.4 [20.7–90.8]>4 41.7 ± 20.5 [13.2–79.1] 39.2 ± 10.2 [22.9–53.6] 37.8 ± 11.3 [23.5–58.9]<1
Time constant (ms) 10.4 ± 3.5 [4.6–20.4]>2 7.6 ± 4.2 [3.2–12.7]<1,3 11.1 ± 2.3 [8.4–16.4]>2 9.5 ± 4.7 [3.8–21.3]

  • Values are mean ± SD. Values between brackets: minimum and maximum. Sample size (n) lower than indicated in text because resistance and time constant have been measured on a subsample of cells. Numbers in exponent correspond to column numbers with which a statistically significant difference has been observed, and the > or < indicate the direction of the difference. For example, the input resistance in regular spiking neurons (column 1) is significantly larger than that in chattering cells (column 4) and this is indicated by “>4”.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Neocortex pyramidal cell layer 2-3 Layer 2-3 Chattering pyramidal cell membrane time constant (ms) 9.5 ± 4.7 9.5 (ms) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 regular spiking pyramidal cell input resistance (MΩ) 51.3 ± 17.4 51.3 (MΩ) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 Fast spiking pyramidal cell input resistance (MΩ) 41.7 ± 20.5 41.7 (MΩ) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 intrinsically bursting pyramidal cell input resistance (MΩ) 39.2 ± 10.2 39.2 (MΩ) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 Chattering pyramidal cell input resistance (MΩ) 37.8 ± 11.3 37.8 (MΩ) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 regular spiking pyramidal cell membrane time constant (ms) 10.4 ± 3.5 10.4 (ms) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 Fast spiking pyramidal cell membrane time constant (ms) 7.6 ± 4.2 7.6 (ms) Data Table
Neocortex pyramidal cell layer 2-3 Layer 2-3 intrinsically bursting pyramidal cell membrane time constant (ms) 11.1 ± 2.3 11.1 (ms) Data Table