State-Dependent Learned Valuation Drives Choice in an Invertebrate

by: Lorena Pompilio, Alex Kacelnik, Spencer T Behmer

Science, Vol. 311, No. 5767. (17 March 2006), pp. 1613-1615.

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Abstract

Humans and other vertebrates occasionally show a preference for items remembered to be costly or experienced when the subject was in a poor condition (this is known as a sunk-costs fallacy or state-dependent valuation). Whether these mechanisms shared across vertebrates are the result of convergence toward an adaptive solution or evolutionary relicts reflecting common ancestral traits is unknown. Here we show that state-dependent valuation also occurs in an invertebrate, the desert locust Schistocerca gregaria (Orthoptera: Acrididae). Given the latter's phylogenetic and neurobiological distance from those groups in which the phenomenon was already known, we suggest that state-dependent valuation mechanisms are probably ecologically rational solutions to widespread problems of choice.

@article{citeulike:556519, abstract = {Humans and other vertebrates occasionally show a preference for items remembered to be costly or experienced when the subject was in a poor condition (this is known as a sunk-costs fallacy or state-dependent valuation). Whether these mechanisms shared across vertebrates are the result of convergence toward an adaptive solution or evolutionary relicts reflecting common ancestral traits is unknown. Here we show that state-dependent valuation also occurs in an invertebrate, the desert locust Schistocerca gregaria (Orthoptera: Acrididae). Given the latter's phylogenetic and neurobiological distance from those groups in which the phenomenon was already known, we suggest that state-dependent valuation mechanisms are probably ecologically rational solutions to widespread problems of choice.}, author = {Pompilio, Lorena and Kacelnik, Alex and Behmer, Spencer T. }, citeulike-article-id = {556519}, doi = {10.1126/science.1123924}, journal = {Science}, keywords = {choice, decision-making, invertebrates, sunk-costs}, month = {March}, number = {5767}, pages = {1613--1615}, posted-at = {2006-03-31 17:08:52}, priority = {5}, title = {State-Dependent Learned Valuation Drives Choice in an Invertebrate}, url = {http://dx.doi.org/10.1126/science.1123924}, volume = {311}, year = {2006} }

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TY - JOUR ID - citeulike:556519 L3 - citeulike-article-id:556519 TI - State-Dependent Learned Valuation Drives Choice in an Invertebrate JF - Science VL - 311 IS - 5767 SP - 1613 EP - 1615 N2 - Humans and other vertebrates occasionally show a preference for items remembered to be costly or experienced when the subject was in a poor condition (this is known as a sunk-costs fallacy or state-dependent valuation). Whether these mechanisms shared across vertebrates are the result of convergence toward an adaptive solution or evolutionary relicts reflecting common ancestral traits is unknown. Here we show that state-dependent valuation also occurs in an invertebrate, the desert locust Schistocerca gregaria (Orthoptera: Acrididae). Given the latter's phylogenetic and neurobiological distance from those groups in which the phenomenon was already known, we suggest that state-dependent valuation mechanisms are probably ecologically rational solutions to widespread problems of choice. KW - choice KW - decision-making KW - invertebrates KW - sunk-costs AU - Pompilio, Lorena AU - Kacelnik, Alex AU - Behmer, Spencer PY - 2006/03/17/ UR - http://dx.doi.org/10.1126/science.1123924 ER -

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