Lecture 8

Lecture 8 - 7/5/2009 Lecture 8: Learning Learning...

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7/5/2009 1 Lecture 8: Learning Learning Experience resulting in relatively permanent change in state of the learner i.e., behavior, understanding Learning vs. Evolution Learning is more flexible But…Learning abilities built through evolution My mornings… FEED ME! Learning about relationships between events Signals Consequences Associative learning MEOW! Classical Conditioning Operant Conditioning
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7/5/2009 2 Pavlov’s Discovery: Classical Conditioning Pavlov’s Experiment: Step 1 Unconditioned stimulus (UCS) automatically elicits the unconditioned response (UCR) (neutral) Pavlov’s Experiment: Step 2 Conditioning trial Repeatedly pair neutral stimulus with unconditioned stimulus (UCS) Pavlov’s Experiment: Step 3 Test trial Eventually, the conditioned stimulus (CS) alone elicits the conditioned
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7/5/2009 3 The Response Unconditioned response and Conditioned response are the same behavior (salivation) Unconditioned response when caused by the Unconditioned stimulus (food) Conditioned response when caused by the Conditioned stimulus alone (bell) What association has my cat made? Meal Time (UCS) + (CS) (CR) MEOW! MEOW! (UCR) MEOW! (neutral) Step 1: Step 2: Step 3: Alarm Meal Time Let’s see another example… (UCS) What did Dwight learn? (UCR) (CR) (neutral) (CS) (UCS) + Step 1: Step 2: Step 3: (UCR)
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7/5/2009 4 Acquisition Example: The Office Clip Extinction If UCS is re-paired Example: Automatic cat feeder Spontaneous Recovery
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Lecture 8 - 7/5/2009 Lecture 8: Learning Learning...

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