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Article: Learning-dependent plasticity of hippocampal CA1 pyramidal neuron postburst afterhyperpolarizations and increased excitability after inhibitory avoidance learning depend upon basolateral amygdala inputs.

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Farmer GE; Thompson LT
Hippocampus, 2012


Table 1. Membrane Properties of Ventral CA1, Dorsal CA1, and CA3 Pyramidal Neurons From Controls and After Contextual Fear Conditioning or Context-Only Exposure to the IA Apparatus
 RatsCellsInput resistanceSagResting potentialSpike widthAP amplitude
 (n)(n)(MΩ)(mV)(mV)(mV)(mV)
  1. No differences in membrane properties of ventral CA1, dorsal CA1, and CA3 pyramidal neurons were observed between controls and after inhibitory avoidance learning or context-only exposure to the IA apparatus. Input resistance, sag, resting potential, spike width, and action potential amplitude values represent means ± SEM.

CA1v       
Control192935.5 ± 1.96.2 ± 0.4−66.8 ± 0.91.3 ± 0.0286.0 ± 1.2
Context 1 h182537.5 ± 2.15.6 ± 0.5−66.9 ± 1.31.3 ± 0.0285.2 ± 0.8
Context 24 h41131.6 ± 2.36.4 ± 0.7−66.9 ± 1.31.4 ± 0.0188.1 ± 0.6
Trained 1 h223241.0 ± 1.96.2 ± 0.4−65.4 ± 0.91.3 ± 0.0284.5 ± 0.8
Trained 24 h51441.8 ± 1.65.7 ± 0.6−66.7 ± 1.21.4 ± 0.0284.4 ± .08
Trained > 72 h2544.3 ± 3.45.7 ± 1.2−65.6 ± 3.51.3 ± 0.0684.8 ± 1.4
CA1d
Control81240.9 ± 1.58.3 ± 0.5−65.6 ± 1.61.2 ± 0.0283.0 ± 2.5
Context 1 h81935.3 ± 1.97.3 ± 0.4−67.0 ± 0.61.2 ± 0.0283.6 ± 0.7
Context 24 h4941.8 ± 2.49.0 ± 0.6−68.5 ± 1.31.2 ± 0.0188.0 ± 1.0
Trained 1 h91537.5 ± 2.28.3 ± 0.6−65.9 ± 1.21.3 ± 0.0286.0 ± 1.0
Trained 24 h61436.7 ± 2.89.4 ± 0.7−66.7 ± 1.01.3 ± 0.0188.2 ± 0.8
Trained > 72 h3641.2 ± 3.19.8 ± 0.8−65.5 ± 2.61.3 ± 0.0287.3 ± 1.0
CA3
Control152146.6 ± 2.54.9 ± 0.5−67.0 ± 0.81.2 ± 0.0281.7 ± 1.1
Context 1 h182047.5 ± 2.93.4 ± 0.5−68.8 ± 1.11.2 ± 0.0285.8 ± 0.5
Context 24 h7966.0 ± 5.82.5 ± 1.2−67.1 ± 1.81.3 ± 0.0387.7 ± 0.8
Trained 1 h172453.5 ± 2.44.4 ± 0.5−68.1 ± 1.41.1 ± 0.0382.2 ± 1.6
Trained 24 h121943.9 ± 4.35.7 ± 0.9−68.5 ± 1.31.3 ± 0.0185.1 ± 0.9

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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Hippocampus CA3 pyramidal cell input resistance 46.6 ± 2.5 (21) 46.6 (MΩ) Data Table
Hippocampus CA3 pyramidal cell sag ratio 4.9 ± 0.5 (21) 0.049 (ratio) Data Table
Hippocampus CA3 pyramidal cell resting membrane potential -67.0 ± 0.8 (21) -67.0 (mV) Data Table
Hippocampus CA3 pyramidal cell spike width 1.2 ± 0.02 (21) 1.2 (ms) Data Table
Hippocampus CA3 pyramidal cell spike amplitude 81.7 ± 1.1 (21) 81.7 (mV) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Ventral CA1 Pyramidal Neuron input resistance 35.5 ± 1.9 (29) 35.5 (MΩ) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Ventral CA1 Pyramidal Neuron sag ratio 6.2 ± 0.4 (29) 0.062 (ratio) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Ventral CA1 Pyramidal Neuron resting membrane potential -66.8 ± 0.9 (29) -66.8 (mV) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Ventral CA1 Pyramidal Neuron spike width 1.3 ± 0.02 (29) 1.3 (ms) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Ventral CA1 Pyramidal Neuron spike amplitude 86.0 ± 1.2 (29) 86.0 (mV) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Dorsal CA1 Pyramidal Neuron input resistance 40.9 ± 1.5 (12) 40.9 (MΩ) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Dorsal CA1 Pyramidal Neuron sag ratio 8.3 ± 0.5 (12) 0.083 (ratio) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Dorsal CA1 Pyramidal Neuron resting membrane potential -65.6 ± 1.6 (12) -65.6 (mV) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Dorsal CA1 Pyramidal Neuron spike width 1.2 ± 0.02 (12) 1.2 (ms) Data Table
Hippocampus CA1 pyramidal cell Hippocampal Dorsal CA1 Pyramidal Neuron spike amplitude 83.0 ± 2.5 (12) 83.0 (mV) Data Table