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Decision uncertainty during hypothesis testing enhances memory accuracy for incidental information
Shen, Xinxu Ballard, Ian C.
Shen, Xinxu
Ballard, Ian C.
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Journal article
Date
2022-03-15
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Psychology and Neuroscience
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http://dx.doi.org/10.1101/lm.053458.121
Abstract
Humans actively seek information to reduce uncertainty, providing insight on how our decisions causally affect the world. While we know that episodic memories can help support future goal-oriented behaviors, little is known about how hypothesis testing during exploration influences episodic memory. To investigate this question, we designed a hypothesis testing paradigm, in which participants figured out rules to unlock treasure chests. Using this paradigm, we characterized how hypothesis testing during exploration influenced memory for the contents of the treasure chests. We found that there was an inverted U-shaped relationship between decision uncertainty and memory, such that memory was best when decision uncertainty was moderate. An exploratory analysis also showed that surprising outcomes lead to lower memory confidence independent of accuracy. These findings support a model in which moderate decision uncertainty during hypothesis testing enhances incidental information encoding.
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Cold Spring Harbor Laboratory Press
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Learning & Memory
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