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Complexity Digest 2005.18 - 03.03
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02-May-2005

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The Ecology And Evolution Of Patience In Two New World Monkeys, Biol. Lett.
 









Excerpts: Decision making often involves choosing between small, short-term
rewards and large, long-term rewards. All animals, humans included, discount
future rewards-the present value of delayed rewards is viewed as less than the
value of immediate rewards. Despite its ubiquity, there exists considerable but
unexplained variation between species in their capacity to wait for rewards-that
is, to exert patience or self-control. (...) we uncover a variable that may
explain differences in how species discount future rewards. Both species faced a
self-control paradigm in which individuals chose between taking an immediate
small reward and waiting a variable amount of time for a large reward. (...)
Source: The Ecology And Evolution Of Patience In Two New World Monkeys[
http://www.journals.royalsoc.ac.uk/app/home/contribution.asp?wasp=7a80a6ded6e843a29bb3f8d032bab8d7&referrer=parent&backto=issue,6,8;journal,1,2;linkingpublicationresults,1:110824,1
], J. R. Stevens, E. V. Hallinan, M. D. Hauser, DOI: 10.1098/rsbl.2004.0285,
Biology Letters, 2005/04/20
Contributed by Atin Das - dasatinyahoo.co.in

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