Document Detail

Serial order of conditional stimuli as a discriminative cue for Pavlovian conditioning.
MedLine Citation:
PMID:  15499680     Owner:  NLM     Status:  MEDLINE    
The serial order in which events occur can be a signal for different outcomes and therefore might be a determinant of how an animal should respond. In this report, we propose a novel design for studying serial order learning in Pavlovian conditioning. In both Experiments 1a and 1b, hungry rats were trained with successively presented pairs of auditory and visual stimuli (e.g., A --> B) using four different stimuli (A-D). Four orders were paired with food (A --> B, B --> C, C --> D, D --> A) while the reversals were extinguished (B --> A, C --> B, D --> C, A --> D). An analysis of responding from the second element of each pair showed that the rats discriminated trial types that preceded food from those that did not. A replication of the effect using a completely counterbalanced design is described in Experiment 1b. These results suggest that rats can use the serial or temporal order of two sequentially presented non-overlapping elements as the basis for discrimination. Two associative accounts are suggested as possible mechanisms for solving the discrimination.
Robin A Murphy; Esther Mondragón; Victoria A Murphy; Nathalie Fouquet
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Behavioural processes     Volume:  67     ISSN:  0376-6357     ISO Abbreviation:  Behav. Processes     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-10-22     Completed Date:  2005-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  303-11     Citation Subset:  IM    
Department of Psychology, University College London, Gower Street, London WC1E 6BT, UK.
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MeSH Terms
Conditioning, Classical*
Discrimination (Psychology)*
Rats, Wistar
Reinforcement (Psychology)
Visual Perception

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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