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How costs affect preferences: experiments on state dependence, hedonic state and within-trial contrast in starlings

Abstract:

We examined how starlings, Sturnus vulgaris, adjust preferences to retrospective sunk costs in either time or work. Ideal decision-makers disregard sunk costs, but under some circumstances animals, like humans, prefer normally costlier rewards when they do not have to pay the costs. We argue that a possible explanation is state-dependent valuation learning (SDVL). The argument is that subjective value (hedonic state or fitness) is a decelerated function of energetic state, and energetic costs...

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Publication status:
Published

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Authors


Vasconcelos, M More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Zoology
Journal:
ANIMAL BEHAVIOUR
Volume:
81
Issue:
6
Pages:
1117-1128
Publication date:
2011-06-05
DOI:
ISSN:
0003-3472
URN:
uuid:8761ae0c-3240-4850-bc47-264edfd6328c
Source identifiers:
210709
Local pid:
pubs:210709

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