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Classical Conditioning DAY 2

Classical Conditioning DAY 2. AP PSYCH. Review. Time is important. Usually must have repeated pairings of the UCS and NS to produce and CR. If Pavlov rang the bell then gave the dogs the meat one time, they would not learn the association.

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Classical Conditioning DAY 2

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  1. Classical ConditioningDAY 2 AP PSYCH

  2. Review

  3. Time is important • Usually must have repeated pairings of the UCS and NS to produce and CR. • If Pavlov rang the bell then gave the dogs the meat one time, they would not learn the association. • Sometimes once is enough (food illness, traumatic experience) • UCS must shortly follow NS. • If Pavlov rang the bell, then did not give the dogs the meat until minutes, even hours later, an association would not occur.

  4. More discoveries of Pavlov • Extinction – the weakening of a conditioned response in the absence of an unconditioned stimulus. • After Pavlov rang the bell many times without giving the dogs any food, eventually they stop the association. • Spontaneous Recovery – The reappearance of an extinguished condition response after a time delay. • Pavlov stops ringing the bell. Days later he rings the bell and the dogs salivate.

  5. Even more discoveries of Pavlov Generalization Discrimination Not responding to stimuli that are similar to the CS. Taught dogs to respond to one tone but not another. (one tone was followed by food, the other was not) You puke after eating a chocolate milkshake, so you hate them. Strawberry milkshakes are okay though. • The extension of a learned response to stimuli that are similar to the conditioned stimulus. • Pavlov’s dogs respond to a tone with a different pitch. • You are afraid of all spiders or all dogs after a bad experience with just one type.

  6. Food Aversions • Are unique • Bad experience with a food can classically condition us to hate/feel sick when we eat that food. • Unlike most learned CC, food aversions may only need one experience to be long lasting. • Are partially learned, partially an innate survival disposition. • Chemotherapy

  7. Poor Little Albert • John Watson • “Albert” Conditioned to fear white rats (loud sound paired with rat) • UCS = loud sound UCR = fear • NS = rat -- CS = rat CR = fear • Generalized to other furry objects • Santa Claus mask, fur coat http://www.youtube.com/watch?v=HZPXVb0W3Hc

  8. Review of Classical Conditioning • An association between the UCS and NS is formed • The NS becomes a CS after being paired with the UCS. • Applications – many fears and phobias are the result of Classical Conditioning. • READ ABOUT CC AND COYOTES IN TEXTBOOK.

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