Modulating Episodic Memory Alters Risk Preference during Decision-making

Journal of Cognitive Neuroscience
David St-AmandA Ross Otto

Abstract

When choosing between options that vary in risk, we often rely on our experience with options-our episodic memories-to make that choice. Although episodic memory has been demonstrated to be critically involved in value-based decision-making, it is not clear how these memory processes contribute to decision-making that involves risk. To investigate this issue, we tested a group of participants on a repeated-choice risky decision-making task. Before completing this task, half of the participants were given a well-validated episodic induction task-a brief training procedure in recollecting the details of a past experience-known to engage episodic memory processes, and the other half were given a general impressions induction task. Our main finding was that risk-taking following the general impressions induction task was significantly lower than following the episodic induction task. In a follow-up experiment, we tested risk-taking in another group of participants without any prior induction task and found that risk-taking from this no-induction (baseline) group was more similar to the episodic induction than to the general impression group. Overall, these findings suggest engaging episodic memory processes when learning about deci...Continue Reading

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Citations

Aug 1, 2018·Journal of Cognitive Neuroscience·Vishnu P MurtyLila Davachi
Aug 21, 2019·Cognition·Hilary J DonDarrell A Worthy
Aug 4, 2021·Proceedings of the National Academy of Sciences of the United States of America·Alyssa H SinclairGregory R Samanez-Larkin

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