Document Detail

Evidence suggesting that desire-state attribution may govern food sharing in Eurasian jays.
MedLine Citation:
PMID:  23382187     Owner:  NLM     Status:  MEDLINE    
State-attribution is the ability to ascribe to others an internal life like one's own and to understand that internal, psychological states such as desire, hope, belief, and knowledge underlie others' actions. Despite extensive research, comparative studies struggle to adequately integrate key factors of state-attribution that have been identified by evolutionary and developmental psychology as well as research on empathy. Here, we develop a behavioral paradigm to address these issues and investigate whether male Eurasian jays respond to the changing desire-state of their female partners when sharing food. We demonstrate that males feed their mates flexibly according to the female's current food preference. Critically, we show that the males need to see what the female has previously eaten to know what food she will currently want. Consequently, the males' sharing pattern was not simply a response to their mate's behavior indicating her preference as to what he should share, nor was it a response to the males' own desire-state. Our results raise the possibility that these birds may be capable of ascribing desire to their mates.
Ljerka Ostojić; Rachael C Shaw; Lucy G Cheke; Nicola S Clayton
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2013-02-04
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  110     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-03-08     Completed Date:  2013-05-02     Revised Date:  2014-09-30    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4123-8     Citation Subset:  IM    
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MeSH Terms
Behavior, Animal
Passeriformes / physiology*
Social Behavior
Grant Support
BB/I000690/1//Biotechnology and Biological Sciences Research Council; //Medical Research Council
Comment In:
Proc Natl Acad Sci U S A. 2013 Mar 5;110(10):3719-20   [PMID:  23426632 ]

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

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