midterm+2+review - Midterm 2 review slides Use as guide to...

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Midterm 2 review slides Use as guide to the key concepts. Does not imply that midterm 2 will be limited to only the topics cover here.
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Overview z Ch 4 { How Do Conditioned and Unconditioned Stimuli Become Associated? z The Blocking Effect z The Rescorla- Wagner Model z Other Models of Classical Conditioning
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Overview z Ch 4 { How Do Conditioned and Unconditioned Stimuli Become Associated? z The Blocking Effect
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Overview z Ch 4 { How Do Conditioned and Unconditioned Stimuli Become Associated? z The Rescorla- Wagner Model Learning on a given conditioning trial is the change in the associative value of a stimulus. y That change can be represented as .V. y The idea that learning depends on the level of surprise of the US can be expressed as follows, y V = k ( λ − V)( 4.1) y where k is a constant related to the salience of the CS and US. y This is the fundamental equation of the Rescorla- Wagner model.
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Overview z Ch 5 { Early Investigations of Instrumental Conditioning { Modern Approaches to the Study of Instrumental Conditioning z Discrete- Trial Procedures z Free- Operant Procedures { Instrumental Conditioning Procedures z Positive Reinforcement z Punishment z Negative Reinforcement z Omission { TrainingFundamental Elements of Instrumental Conditioning z The Instrumental Response z The Instrumental Reinforcer z The Response- Reinforcer Relation
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Thorndike’s Law of Effect The Law of Effect is that: Of several responses made to the same situation, those which are accompanied or closely followed by satisfaction to the animal will, other things being equal, be more firmly connected with the situation, so that, when it recurs, they will be more likely to recur; those which are accompanied or closely followed by discomfort to the animal will, other things being equal, have their connections with that situation weakened, so that, when it recurs, they will be less likely to occur. The greater the satisfaction or discomfort, the greater the strengthening or weakening of the bond.
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Discrete Trial and Free Operant Procedures z Discrete Trial: z Thorndike Maze and Puzzle Box Designs Subject could make one and only one response on each trial Usually looked at response latency z Free Operant: z Skinner Skinner Box Subjects could respond repeatedly, without intervention Operant response can occur at any time Operant response can occur repeatedly Could now look at response rate in addition to response latency
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The instrumental response Appetitive = pleasant
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Overview z Ch 5 { TrainingFundamental Elements of Instrumental Conditioning z The Instrumental Response z The Instrumental Reinforcer z The Response- Reinforcer Relation
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The instrumental response: Behavioral variability versus stereotypy. z
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midterm+2+review - Midterm 2 review slides Use as guide to...

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