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Article: Medium afterhyperpolarization and firing pattern modulation in interneurons of stratum radiatum in the CA3 hippocampal region.

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Savić N; Pedarzani P; Sciancalepore M
J. Neurophysiol., 2001


Table 1.

A comparison of the physiological properties of interneurons and CA3 pyramidal neurons

Recorded Neurons
Interneurons, ageP10–12 Pyramidal cells, ageP10–12 Interneurons, age P17–21
Resting membrane potential, mV −53 ± 0.8* −57 ± 4.0 −54 ± 0.8
Input resistance, MΩ 791 ± 299* 454 ± 113 785 ± 289
Membrane time constant, ms 61 ± 17* 91 ± 15 61 ± 9.5
Firing threshold, mV −37 ± 2.2 −39 ± 3.6 −36 ± 1.7
AP amplitude, mV 73 ± 7.0* 85 ± 7.0 71.5 ± 5
AP duration, ms 1.4 ± 0.2* 1.7 ± 0.4 1.43 ± 0.2
Rectification ratio 1.26 ± 0.1* 1.1 ± 0.02 1.22 ± 0.1

  • Values are means ± SD. Number of cells for Interneurons, age P10–12, is 29; for Pyramidal Cells, ageP10–12, is 7; and for Interneurons, age P17–21, is 10. AP, action potential. * Significantly different from pyramidal cells at the same age (P < 0.05).


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Other Hippocampus CA3b stratum radiatum interneuron membrane time constant (ms) 61.0 ± 17.0 (29) 61.0 (ms) Data Table
Hippocampus CA3 pyramidal cell membrane time constant (ms) 91.0 ± 15.0 (7) 91.0 (ms) Data Table
Other Hippocampus CA3b stratum radiatum interneuron membrane time constant (ms) 61.0 ± 9.5 (10) 61.0 (ms) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike threshold (mV) -37.0 ± 2.2 (29) -37.0 (mV) Data Table
Hippocampus CA3 pyramidal cell spike threshold (mV) -39.0 ± 3.6 (7) -39.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike threshold (mV) -36.0 ± 1.7 (10) -36.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike amplitude (mV) 73.0 ± 7.0 (29) 73.0 (mV) Data Table
Hippocampus CA3 pyramidal cell spike amplitude (mV) 85.0 ± 7.0 (7) 85.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron resting membrane potential (mV) -53.0 ± 0.8 (29) -53.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike amplitude (mV) 71.5 ± 5.0 (10) 71.5 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike half-width (ms) 1.4 ± 0.2 (29) 1.4 (ms) Data Table
Hippocampus CA3 pyramidal cell spike half-width (ms) 1.7 ± 0.4 (7) 1.7 (ms) Data Table
Other Hippocampus CA3b stratum radiatum interneuron spike half-width (ms) 1.43 ± 0.2 (10) 1.43 (ms) Data Table
Hippocampus CA3 pyramidal cell resting membrane potential (mV) -57.0 ± 4.0 (7) -57.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron resting membrane potential (mV) -54.0 ± 0.8 (10) -54.0 (mV) Data Table
Other Hippocampus CA3b stratum radiatum interneuron input resistance (MΩ) 791.0 ± 299.0 (29) 791.0 (MΩ) Data Table
Hippocampus CA3 pyramidal cell input resistance (MΩ) 454.0 ± 113.0 (7) 454.0 (MΩ) Data Table
Other Hippocampus CA3b stratum radiatum interneuron input resistance (MΩ) 785.0 ± 289.0 (10) 785.0 (MΩ) Data Table