Document Detail


Are people really more patient than other animals? Evidence from human discounting of real liquid rewards.
MedLine Citation:
PMID:  19966257     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In previous studies, researchers have found that humans discount delayed rewards orders of magnitude less steeply than do other animals. Humans also discount smaller delayed reward amounts more steeply than larger amounts, whereas animals apparently do not. These differences between humans and animals might reflect differences in the types of rewards studied and/or the fact that animals actually had to wait for their rewards. In the present article, we report the results of three experiments in which people made choices involving liquid rewards delivered and consumed after actual delays, thereby bridging the gap between animal and human studies. Under these circumstances, humans, like animals, discounted the value of rewards delayed by seconds; however, unlike animals, they still showed an effect of reward amount. Human discounting was well described by the same hyperboloid function that has previously been shown to describe animal discounting of delayed food and water rewards, as well as human discounting of real and hypothetical monetary rewards.
Authors:
Koji Jimura; Joel Myerson; Joseph Hilgard; Todd S Braver; Leonard Green
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Psychonomic bulletin & review     Volume:  16     ISSN:  1531-5320     ISO Abbreviation:  Psychon Bull Rev     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-12-07     Completed Date:  2010-02-23     Revised Date:  2014-05-23    
Medline Journal Info:
Nlm Unique ID:  9502924     Medline TA:  Psychon Bull Rev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1071-5     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Appetitive Behavior*
Beverages
Choice Behavior
Decision Making
Drinking*
Humans
Judgment*
Motivation*
Reward*
Species Specificity
Thirst
Time Perception*
Grant Support
ID/Acronym/Agency:
MH055308/MH/NIMH NIH HHS; R21 AG030795/AG/NIA NIH HHS; R21 AG030795/AG/NIA NIH HHS
Comments/Corrections
Erratum In:
Psychon Bull Rev. 2010 Feb;17(1):139

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


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