Document Detail

Reciprocal overshadowing between intra-maze and extra-maze cues.
MedLine Citation:
PMID:  1496138     Owner:  NLM     Status:  MEDLINE    
In three experiments, rats learned a maze discrimination where the location of food was defined either by reference to extra-maze cues alone, or by both extra- and intra-maze cues. Experiment 1 confirmed earlier results in showing that the presence of intra-maze cues failed to overshadow learning about extra-maze cues, in spite of the former's apparently greater salience. Experiment 2, however, suggested that this result was an artefactual consequence of differences between groups in the proportion of reinforced and unreinforced trials during the course of discriminative training. In Experiment 3, the discrimination was taught by a series of reinforced and unreinforced placement trials, and a significant overshadowing effect was observed. Intra-maze and extra-maze cues seem to compete for association with reinforcement in exactly the same way as any other cues.
J March; V D Chamizo; N J Mackintosh
Related Documents :
15001218 - Behavioral alterations in adolescent and adult rats caused by a brief subtoxic exposure...
6726198 - The effects of visual and spatial interference on spatial working memory.
11588608 - The ampa receptor allosteric potentiator pepa ameliorates post-ischemic memory impairment.
12486268 - Loss of spatial learning in a patient with topographical disorientation in new environm...
21182208 - Conversational gestures in autism spectrum disorders: asynchrony but not decreased freq...
2905808 - Benzodiazepine receptor ligands: tools for memory research in clinical pharmacology.
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:  45     ISSN:  0272-4995     ISO Abbreviation:  Q J Exp Psychol B     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-09-10     Completed Date:  1992-09-10     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:  49-63     Citation Subset:  IM    
Departament de Psicologia Basica, Universitat de Barcelona, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Appetitive Behavior*
Discrimination Learning*
Social Environment

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

Previous Document:  Delayed-matching-to-sample by marsh tits and great tits.
Next Document:  The role of instrumental responses in memory retrieval in a T-maze.