Monkeys Are More Patient in a Foraging Task than in a Standard Intertemporal Choice Task


Studies of animal impulsivity generally find steep subjective devaluation, or discounting, of delayed rewards - often on the order of a 50% reduction in value in a few seconds. Because such steep discounting is highly disfavored in evolutionary models of time preference, we hypothesize that discounting tasks provide a poor measure of animals' true time… (More)
DOI: 10.1371/journal.pone.0117057


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