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Classical Conditioning

Classical Conditioning. Ivan Pavlov. CLASSICAL CONDITIONING. Learning through the association of a stimulus and a response A manipulation of natural associations. Unconditioned Stimulus. UCS Stimulus to which an organism has a natural response. Unconditioned Response. UCR

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Classical Conditioning

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  1. Classical Conditioning Ivan Pavlov

  2. CLASSICAL CONDITIONING • Learning through the association of a stimulus and a response • A manipulation of natural associations

  3. Unconditioned Stimulus • UCS • Stimulus to which an organism has a natural response

  4. Unconditioned Response • UCR • Organism’s natural response to a stimulus

  5. Neutral Stimulus • Neutral • Alone, does not evoke any response

  6. Conditioned Stimulus • CS • A neutral stimulus that has been associated with a natural response

  7. Conditioned Response • CR • Learned response to a conditioned stimulus that is not natural

  8. In Pavlov’s experiment with the dog, bell, food and salivation, what is the UCS, UCR, Neutral, CS and CR?

  9. Bringing in the Dog • Food = UCS • Salivating = UCR • Bell = Neutral Stimulus • Bell is paired with Food • After time, the bell ALONE creates salivating • Bell = CS; Salivation = CR

  10. How and when have you been classically conditioned? • What factor’s should impact whether conditioning is effective?

  11. Pavlov’s Observations • Time between CS and UCS • CS should precede CR by .5 seconds for strongest response.

  12. Repetition: More often CS and UCS are paired, the stronger the response.

  13. Generalization: similar CS should cause same CR (Allergies) • Discrimination: discriminate between CS

  14. Extinction: if after conditioning the CS is presented repeatedly without the USC, the CR eventually fades.

  15. Applications of Classical Conditioning • Counterconditioning: pleasure and fear simultaneously • Flooding: increase contact w/ stimulus

  16. Applications of Classical Conditioning • Desensitization: sequence of events to gradually reduce response.

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