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Acquisition curve of Eyeblink CR

Acquisition curve of Eyeblink CR. Extinction curve. (New day). (New day). (New day). Spontaneous Recovery. Generalization Gradient. From Moore, 1972 Eyeblink conditioning in Rabbits CS+ = 1200 Hz Tone UCS = mild Shock Hundreds of trials Generalization test in extinction (no US).

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Acquisition curve of Eyeblink CR

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  1. Acquisition curve of Eyeblink CR

  2. Extinction curve

  3. (New day) (New day) (New day) Spontaneous Recovery

  4. Generalization Gradient • From Moore, 1972 • Eyeblink conditioning in Rabbits • CS+ = 1200 Hz Tone UCS = mild Shock Hundreds of trials • Generalization test in extinction (no US)

  5. Second-Order or Higher-Order Conditioning • From Rizley & Rescorla, 1972 • Phase 1: (8 Trials) CS1 (flashing light) →UCS (shock) • CR: Fear (CER - conditioned emotional response) • Phase 2: CS2 (1800 Hz tone) → CS1 (light)

  6. Latent Inhibition • From Hall & Minor, 1984 • CER Procedure: • Phase 1: Train thirsty rats to drink from tube • Phase 2: Separately present Tone during 3 Sessions; Controls had no Tone while in box • Phase 3: All rats had Tone Shock pairings • Test Phase: Present Tone while rats were drinking from water tube • Suppression ratio =_A_ A+B A = # responses during CS B = # responses prior to CS (same amount of time) • The lower, the more suppression

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