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Negative priming and occasion setting in an appetitive Pavlovian procedure.

Authors
  • Mondragón, Esther1
  • Bonardi, Charlotte
  • Hall, Geoffrey
  • 1 University of York, Heslington, York, England.
Type
Published Article
Journal
Learning & behavior
Publication Date
Aug 01, 2003
Volume
31
Issue
3
Pages
281–291
Identifiers
PMID: 14577551
Source
Medline
Language
English
License
Unknown

Abstract

Rats received training in which two auditory target stimuli, X and Y, were signaled by two visual stimuli, A and B, and followed by food (i.e., A-->X+, B-->Y+). The test consisted of presentations of X and Y preceded either by the same signal as during training (same trials: A-->X, B-->Y) or by the alternative signal (different trials: A-->Y, B-->X). After 8 training sessions, the animals responded less on same trials than on different trials; this effect was significantly reduced after 24 training sessions. In two additional experiments, animals that had also experienced presentations of A and B alone, either before or during training, showed the opposite pattern of results, responding more on same trials than on different trials. These results are interpreted as being due to the interaction between the effects of occasion setting and negative priming (see Wagner, 1981).

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