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  • Title: How False Memory and True Memory Affect Decision Making in Older Adults: A Dissociative Account.
    Author: Wang J, Gutchess A.
    Journal: J Gerontol B Psychol Sci Soc Sci; 2024 Jun 01; 79(6):. PubMed ID: 38642397.
    Abstract:
    OBJECTIVES: Remembering past rewarding experiences plays a crucial rule in guiding people's decision making in the future. However, as people age, they become less accurate in remembering past events and more susceptible to forming false memories. An important question is how the decline of episodic memory and the increase of false memory may affect older adults' decision-making performance. METHODS: The current study used a newly developed paradigm in which the Deese-Roediger-McDermott (DRM) false memory paradigm was combined with a reward learning task to create robust false memories of rewarding experiences. Participants learned that some DRM picture lists brought them a monetary reward and some DRM picture lists did not bring reward. Later, their memories were tested and decision-making preferences were measured. RESULTS: We found that older and younger adults had almost equivalent false and true memories under the rewarding context, but older adults showed significantly lower decision-making preferences for lure pictures and rewarded pictures than younger adults. Furthermore, true and false memories were a stronger predictor of decision-making preferences for younger than for older adults. DISCUSSION: These results together suggest an age-related dissociation between memory and decision making that older adults may be less efficient in using their memory to guide decision making than younger adults. Future research may further investigate its underlying mechanisms and develop potential interventions aiming at strengthening the connection between memory and decision making in older adults to help improve their decision-making performance.
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