Document Detail

A role for stimulus generalization in conditional discrimination learning.
MedLine Citation:
PMID:  2798927     Owner:  NLM     Status:  MEDLINE    
In each of three experiments on discrimination learning by rats, whether or not a 10-sec target stimulus was followed by food was determined by the nature of a 2-min background stimulus that accompanied it. A conditional discrimination was employed in Experiment 1 such that background A indicated food would follow one target but not the other, whereas this relationship between the targets and food was reversed in the presence of background B. Experiment 2 employed two feature-positive discriminations. Subsequent test trials revealed that the background for one discrimination was able to enhance responding during the target for the other discrimination. Experiment 3 employed a feature-positive and a feature-negative discrimination prior to test trials in which each target was presented separately during a compound of both background stimuli. The compound enhanced responding to the target from the feature-positive discrimination and reduced it to the target from the feature-negative discrimination. We suggest that to accommodate all these findings, the best explanation is provided by a configural model of Pavlovian conditioning.
P N Wilson; J M Pearce
Related Documents :
7403207 - Effects of pimozide on lever pressing behavior maintained on an intermittent reinforcem...
16811887 - Stimulus properties of fixed-interval responses.
18406077 - Dynamics of choice and frequency of environment change.
3227037 - Different effects of short- and long-term treatment with imipramine on the apomorphine-...
11958477 - Reduction of food intake following x-ray irradiation of rats--involvement of visceral a...
10565407 - Chemoprevention--a novel approach in dietetics.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Quarterly journal of experimental psychology. B, Comparative and physiological psychology     Volume:  41     ISSN:  0272-4995     ISO Abbreviation:  Q J Exp Psychol B     Publication Date:  1989 Aug 
Date Detail:
Created Date:  1989-11-01     Completed Date:  1989-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8107270     Medline TA:  Q J Exp Psychol B     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  243-73     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Association Learning
Auditory Perception
Conditioning, Classical*
Discrimination Learning*
Generalization, Stimulus*
Rats, Inbred Strains

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

Previous Document:  Inhibitory discriminative control is specific to both the response and the reinforcer.
Next Document:  Spatial memory in rats: a cross validation study.