Document Detail

Can lemurs (Eulemur fulvus and E. macaco) use abstract representations of quantities to master the reverse-reward contingency task?
MedLine Citation:
PMID:  21394424     Owner:  NLM     Status:  MEDLINE    
In previous studies we demonstrated that brown and black lemurs (Eulemur fulvus and E. macaco) showed self-control abilities under a reverse-reward contingency. They were able to significantly select the smaller quantity of food to be rewarded with the larger one and to generalize this ability when presented with two rewards that differed in quality. In the present study, previously trained subjects had to choose between graphic representations of two different quantities of food under the reverse-reward contingency. Three out of four subjects learned to associate a graphic representation of the reward with the corresponding quantity. Only one subject consistently selected the representation of the smaller quantity to be rewarded with the larger quantity of food and therefore showed abstraction as well as relative numerousness skills. Indeed, she was able to discriminate between representations of different quantities and to ordinate them. We discuss how primates mentally represent food quantities and how self-control is involved in foraging strategies.
Emilie Genty; Jean-Jacques Roeder
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Publication Detail:
Type:  Journal Article     Date:  2011-03-11
Journal Detail:
Title:  Primates; journal of primatology     Volume:  52     ISSN:  1610-7365     ISO Abbreviation:  Primates     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-08-17     Completed Date:  2012-07-04     Revised Date:  2014-03-25    
Medline Journal Info:
Nlm Unique ID:  0401152     Medline TA:  Primates     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  253-60     Citation Subset:  IM    
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MeSH Terms
Association Learning*
Choice Behavior
Concept Formation*
Food Preferences
Impulsive Behavior*
Lemuridae / physiology,  psychology*
Reversal Learning
Species Specificity
Transfer (Psychology)*

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

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