Document Detail

Pigeons shift their preference toward locations of food that take more effort to obtain.
MedLine Citation:
PMID:  15518990     Owner:  NLM     Status:  MEDLINE    
Although animals typically prefer to exert less effort rather than more effort to obtain food, the present research shows that requiring greater effort to obtain food at a particular location appears to increase the value of that location. In Experiment 1, pigeons' initial preference for one feeder was significantly reduced by requiring 1 peck to obtain food from that feeder and requiring 30 pecks to obtain food from the other feeder. In Experiment 2, a similar decrease in preference was not found when pigeons received reinforcement from both feeders independently of the amount of effort required. These results are consistent with the within-trial contrast effect proposed by in which the relative hedonic value of a reward depends on the state of the animal immediately prior to the reward. The greater the improvement from that prior state the greater the value of the reinforcer.
Andrea M Friedrich; Thomas R Zentall
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Behavioural processes     Volume:  67     ISSN:  0376-6357     ISO Abbreviation:  Behav. Processes     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-11-02     Completed Date:  2005-03-01     Revised Date:  2014-03-25    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  405-15     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Behavior, Animal*
Choice Behavior*
Feeding Behavior*
Physical Exertion*
Grant Support

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

Previous Document:  Functional equivalence in pigeons involving a four-member class.
Next Document:  Operant conditioning in the ant Myrmica sabuleti.