rakow, Tim and Miler, Katherine (2009) 'Doomed to repeat the successes of the past: History is best forgotten for repeated choices with nonstationary payoffs.' Memory & Cognition, 37 (7). pp. 985-1000. ISSN 0090-502X
Full text not available from this repository.Abstract
Many everyday tasks involve repeated choices in which past outcomes are used to estimate payoffs but in which present payoffs may differ from past ones. Two experiments with 10 decision problems employing the decisions-from-feedback paradigm examined the choice between two risky options, wherein the payoff probabilities for one option could change over a sequence of trials. Participants either saw the outcomes associated with each option, or additionally were given a “history” summarizing the outcomes of previous trials. Participants adapted quickly to new problems, but adapted slowly to payoff changes. Providing a history improved initial choices, but had a null or negative impact on later ones—although, appropriately, the summary received less weight in later trials. An associative choice model captured changes in preference, but not initial patterns of choice. The findings emphasize the adaptive value of forgetting in unstable decision environments, but illustrate how providing additional relevant information may hinder this.
Item Type: | Article |
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology |
Divisions: | Faculty of Science and Health > Psychology, Department of |
SWORD Depositor: | Elements |
Depositing User: | Elements |
Date Deposited: | 13 Nov 2011 15:18 |
Last Modified: | 14 Apr 2022 09:56 |
URI: | http://repository.essex.ac.uk/id/eprint/1464 |
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