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Memory Beliefs Drive the Memory Bias on Value-based Decisions

Mechera-Ostrovsky, Tehilla and Gluth, Sebastian. (2018) Memory Beliefs Drive the Memory Bias on Value-based Decisions. Scientific Reports, 8 (10592). pp. 1-10.

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Official URL: https://edoc.unibas.ch/67798/

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Abstract

For many value-based decisions, people need to retrieve relevant information from their memory. In our previous work, we have shown that memory biases decisions in the sense that better-memorized choice options are preferred, even if these options are comparatively unattractive. However, the cognitive mechanisms that drive this memory bias remain unclear. In the current pre-registered study, we tested the hypothesis that the memory bias arises because people believe they remember better options more often than worse options. Specifically, we predicted a positive correlation between the memory bias on value-based decisions and the belief in value-dependent memory performance. This prediction was confirmed. Additional exploratory analyses revealed that memory performance was indeed higher for more attractive options, indicating that letting decisions be influenced by memory can be an adaptive strategy. However, the memory bias persisted after correcting for this effect, suggesting that it is not simply an artifact of unequal memory performance. Our results highlight a critical influence of beliefs on behavior and add to an emerging understanding of the role of memory in shaping value-based decisions.
Faculties and Departments:07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Sozial-, Wirtschafts- und Entscheidungspsychologie > Decision Neuroscience (Gluth)
UniBasel Contributors:Gluth, Sebastian and Mechera-Ostrovsky, Tehilla
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
e-ISSN:2045-2322
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:21 Jan 2019 14:07
Deposited On:21 Jan 2019 14:07

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