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The role of reward and reward uncertainty in episodic memory
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Mason, Alice, Farrell, Simone, Howard-Jones, Paul and Ludwiga, Casimir J. H. (2017) The role of reward and reward uncertainty in episodic memory. Journal of Memory and Language, 96 . pp. 62-77. doi:10.1016/j.jml.2017.05.003 ISSN 0749-596X.
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Official URL: https://doi.org/10.1016/j.jml.2017.05.003
Abstract
Declarative memory has been found to be sensitive to reward-related changes in the environment. The reward signal can be broken down into information regarding the expected value of the reward, reward uncertainty and the prediction error. Research has established that high as opposed to low reward values enhance declarative memory. Research in neuroscience suggests that high uncertainty activates the reward system, which could lead to enhanced learning and memory. Here we present the results of four behavioural experiments that examined the role of reward uncertainty in memory, independently from any other theoretically motivated reward-related effects. Participants completed motivated word learn- ing tasks in which we varied the level of reward uncertainty and magnitude. Rewards were dependent upon memory performance in a delayed recognition test. Overall the results suggest that reward uncer- tainty does not affect episodic memory. Instead, only reward outcome appears to play a major role in modulating episodic memory.
Item Type: | Journal Article | ||||||||
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||||||
Library of Congress Subject Headings (LCSH): | Episodic memory, Reward (Psychology) , Uncertainty, Risk-taking (Psychology) | ||||||||
Journal or Publication Title: | Journal of Memory and Language | ||||||||
Publisher: | Academic Press | ||||||||
ISSN: | 0749-596X | ||||||||
Official Date: | October 2017 | ||||||||
Dates: |
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Volume: | 96 | ||||||||
Page Range: | pp. 62-77 | ||||||||
DOI: | 10.1016/j.jml.2017.05.003 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 23 September 2019 | ||||||||
Date of first compliant Open Access: | 23 September 2019 | ||||||||
RIOXX Funder/Project Grant: |
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