Document Detail

The nature of discrimination learning in pigeons.
MedLine Citation:
PMID:  18683464     Owner:  NLM     Status:  MEDLINE    
The results from five experiments are considered in relation to two of Spence's (1937, 1938) proposals concerning discrimination learning. In Experiments 1 and 2, we investigated whether his ideas about the interaction between excitatory and inhibitory generalization gradients can be used to understand how animals solve a complex patterning discrimination. The results supported a development of his proposals as put forward by Pearce (1994), provided a modification was made to Pearce's rulefor determining the shape ofthe generalization gradient. In Experiments 3, 4, and 5, we examined whether animals would pay more attention to stimuli that are relevant, rather than irrelevant, to the solution of a discrimination. The results supported this proposal for stimuli comprising visual patterns, but not for those comprising plain colors. The results also indicated that change of attention was a consequence of preliminary receptor-exposure acts, as envisaged by Spence, and not of more central changes in attention.
John M Pearce; Guillem R Esber; David N George; Mark Haselgrove
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Learning & behavior     Volume:  36     ISSN:  1543-4494     ISO Abbreviation:  Learn Behav     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-07     Completed Date:  2008-09-04     Revised Date:  2011-01-24    
Medline Journal Info:
Nlm Unique ID:  101155056     Medline TA:  Learn Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  188-99     Citation Subset:  IM    
School of Psychology, Cardiff University, Cardiff, Wales.
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MeSH Terms
Discrimination Learning*
Models, Statistical*
Grant Support
//Biotechnology and Biological Sciences Research Council

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

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