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Classical Conditioning
Ivan Pavlov
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CLASSICAL CONDITIONING
Learning through the association of a stimulus and a response A manipulation of natural associations
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Unconditioned Stimulus
UCS Stimulus to which an organism has a natural response Smell favorite food, a ballis thrown, you hear a noise
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Unconditioned Response
UCR Organism’s natural response to a stimulus
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Neutral Stimulus Neutral Alone, does not evoke any response
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Conditioned Stimulus CS A neutral stimulus that has been associated with a natural response
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Conditioned Response CR Learned response to a conditioned stimulus that is not natural
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In Pavlov’s experiment with the dog, bell, food and salivation, what is the UCS, UCR, Neutral, CS and CR?
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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
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How and when have you been classically conditioned?
What factor’s should impact whether conditioning is effective?
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Pavlov’s Observations
Time between CS and UCS CS should precede CR by .5 seconds for strongest response.
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Repetition: More often CS and UCS are paired, the stronger the response.
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Generalization: similar CS should cause same CR (Allergies)
Discrimination: discriminate between CS
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Extinction: if after conditioning the CS is presented repeatedly without the USC, the CR eventually fades.
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Applications of Classical Conditioning
Counterconditioning: pleasure and fear simultaneously Flooding: increase contact w/ stimulus
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Applications of Classical Conditioning
Desensitization: sequence of events to gradually reduce response.
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