Discrimination and Generalization - Research Article from Learning & Memory

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Paradigms for Occasion Setting

Occasion setters are stimulus features, such as the presence of a light or tone, that serve as discriminative stimuli. For example, the presence of a light might signal that operant responses will be reinforced. The absence of this light would signal that operant responses are not reinforced. In general, a feature-positive paradigm is one in which the OS signals reinforcement; a feature-negative paradigm is one in which the OS signals the absence of reinforcement. The presence of a light or tone might signal reinforcement, whereas its absence signals nonreinforcement. In classical conditioning a feature-positive occasion-setting task would involve adding a feature to the CS. For example, if the CS is a tone, the addition of a light sets the occasion for reinforcement, whereas the tone alone would not signal reinforcement. A feature-negative task would be one in which the light, instead of signaling...

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This section contains 1,792 words
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Learning & Memory
Discrimination and Generalization from Learning & Memory. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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