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Article: Trace fear conditioning enhances synaptic and intrinsic plasticity in rat hippocampus.

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Song C; Detert JA; Sehgal M; Moyer JR
J. Neurophysiol., 2012


Table 2.

Summary of learning-related changes in CA1 neurons after trace fear conditioning

Postburst AHP
Group (no. of rats)Amplitude, mVDuration, sArea, mV · sAccommodation, no. of action potentials
Naive (12)-4.82 ± 1.50 (18)3.13 ± 0.17 (18)-5.56 ± 1.55 (18)6.8 ± 0.5 (18)
Chamber exposed (3)-5.22 ± 0.46 (6)3.29 ± 0.33 (6)-6.25 ± 0.80 (6)7.8 ± 0.4 (6)
Pseudo (10)-5.85 ± 0.52 (16)3.57 ± 0.21 (16)-7.43 ± 0.74 (16)6.3 ± 0.4 (16)
Poor learners (5)-4.89 ± 0.85 (8)3.05 ± 0.26 (8)-5.88 ± 1.00 (8)7.8 ± 0.8 (8)
Good learners (6)-2.64 ± 0.54 (9)*2.10 ± 0.22 (9)*-2.85 ± 0.81 (9)*10.0 ± 0.8 (9)*
  • Data are means ± SE for no. of cells in parentheses. AHP, afterhyperpolarization. For AHP amplitude: significantly different from all controls (* poor learners, P < 0.05;

  • naive, chamber exposed, and pseudo, P < 0.01). For AHP duration: significantly different from all controls (*poor learners, P < 0.05; †naive, chamber exposed, and pseudo, P < 0.01). For AHP area: significantly different from all controls (*naive, chamber exposed, and poor learners, P < 0.05; †pseudo, P < 0.01). For accommodation: significantly different from all controls (*poor learners and chamber exposed, P < 0.05; †naive and pseudo, P < 0.01).


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Hippocampus CA1 pyramidal cell AHP amplitude (mV) -4.82 ± 1.5 (18) 4.82 (mV) Data Table
Hippocampus CA1 pyramidal cell AHP duration (s) 3.13 ± 0.17 (18) 3130.0 (ms) Data Table