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      Aging and loss decision making: increased risk aversion and decreased use of maximizing information, with correlated rationality and value maximization

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          Abstract

          We investigated how adult aging specifically alters economic decision-making, focusing on examining alterations in uncertainty preferences (willingness to gamble) and choice strategies (what gamble information influences choices) within both the gains and losses domains. Within each domain, participants chose between certain monetary outcomes and gambles with uncertain outcomes. We examined preferences by quantifying how uncertainty modulates choice behavior as if altering the subjective valuation of gambles. We explored age-related preferences for two types of uncertainty, risk, and ambiguity. Additionally, we explored how aging may alter what information participants utilize to make their choices by comparing the relative utilization of maximizing and satisficing information types through a choice strategy metric. Maximizing information was the ratio of the expected value of the two options, while satisficing information was the probability of winning. We found age-related alterations of economic preferences within the losses domain, but no alterations within the gains domain. Older adults (OA; 61–80 years old) were significantly more uncertainty averse for both risky and ambiguous choices. OA also exhibited choice strategies with decreased use of maximizing information. Within OA, we found a significant correlation between risk preferences and choice strategy. This linkage between preferences and strategy appears to derive from a convergence to risk neutrality driven by greater use of the effortful maximizing strategy. As utility maximization and value maximization intersect at risk neutrality, this result suggests that OA are exhibiting a relationship between enhanced rationality and enhanced value maximization. While there was variability in economic decision-making measures within OA, these individual differences were unrelated to variability within examined measures of cognitive ability. Our results demonstrate that aging alters economic decision-making for losses through changes in both individual preferences and the strategies individuals employ.

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                Author and article information

                Contributors
                Journal
                Front Hum Neurosci
                Front Hum Neurosci
                Front. Hum. Neurosci.
                Frontiers in Human Neuroscience
                Frontiers Media S.A.
                1662-5161
                13 May 2015
                2015
                : 9
                Affiliations
                1Department of Psychology, Faculty of Arts and Sciences, National University of Singapore Singapore, Singapore
                2Centre for Cognitive Neuroscience, Neuroscience and Behavioral Disorders Program, Duke-NUS Graduate Medical School Singapore, Singapore
                3Centre for Ageing Studies, Temasek Polytechnic Singapore, Singapore
                4SINAPSE Institute for Cognitive Science and Neurotechnologies, National University of Singapore Singapore, Singapore
                Author notes

                Edited by: Hauke R. Heekeren, Freie Universität Berlin, Germany

                Reviewed by: Sandra Baez, Institute of Cognitive Neurology, Argentina; Gregory R. Samanez-Larkin, Yale University, USA; Peter N. C. Mohr, Freie Universität Berlin, Germany

                *Correspondence: O’Dhaniel A. Mullette-Gillman, Department of Psychology, Faculty of Arts and Sciences, National University of Singapore, Block AS4, Level 2, 9 Arts Link, Singapore 117570, Singapore odubik@ 123456gmail.com
                Article
                10.3389/fnhum.2015.00280
                4429571
                Copyright © 2015 Kurnianingsih, Sim, Chee and Mullette-Gillman.

                This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

                Page count
                Figures: 5, Tables: 4, Equations: 0, References: 71, Pages: 12, Words: 0
                Categories
                Neuroscience
                Original Research

                Neurosciences

                ambiguity, uncertainty, gains, losses, strategy, risk, decision making, aging

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