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Lecture 10

Lecture 10 - Learned ability to distinguish between a...

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Learning : A relatively permanent change in an organism’s behavior due to experience I. Classical Conditioning II. Operant Conditioning III. Observational Learning I. Classical Conditioning: Learning via association Unconditioned Stimulus (UCS): A stimulus that unconditionally--naturally and automatically-- triggers a response. Example: Meat Powder Unconditioned Response (UCR): The unlearned, naturally occurring response to an unconditioned stimulus Example: Salivation Conditioned Stimulus : Originally irrelevant stimulus that, when paired with the UCS, elicits a conditioned response Example: Sound of tuning fork Conditioned Response : Learned response to a previously neutral conditioned stimulus Example: Salivation Stimulus generalization : Tendency once a response is conditioned for similar stimuli to elicit the similar responses Example: Flinching with similar words--ban, ran, cap, cast Stimulus discrimination
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Unformatted text preview: : Learned ability to distinguish between a conditioned stimulus and other stimuli that do not signal an UCS. Example: Other words that don’t sound like “can” elicit no or different responses than the CR. Extinction : The diminishing of a CR. Happens when an UCS does not follow a CS. Example: “Can” spoken several times without a squirt and, over time, the person fails to squint Reconditioning : Fewer trials are needed to elicit a reliable CR Operant Conditioning Animal tricks, crime and punishment, studying and grades, taking aspirin to relieve a headache, saying “please” etc. etc. Law of Effect : If a response is made in the presence of a particular stimulus and is rewarded, that response is more likely in the future. Example: Drunk driving and not getting caught B.F. Skinner: How is behavior changed by it’s consequences? The environment = RAT MAZE...
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