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Self-reported encoding quality promotes lure rejections and false alarms.
Christopher N Wahlheim1, Sydney M Garlitch2, Rawan M Mohamed3
1Department of Psychology, University of North Carolina at Greensboro, Greensboro, North Carolina 27412, USA cnwahlhe@uncg.edu.
Learning & Memory (Cold Spring Harbor, N.Y.)
|May 4, 2023
Summary
High-quality memory encoding in the hippocampus helps distinguish similar memories and reject false ones. However, it can also lead to misclassifying lures as real memories when perceptions and memories are poorly compared.
Area of Science:
- Cognitive Neuroscience
- Neuroscience of Memory
Background:
- The hippocampus is crucial for forming distinct memories, allowing differentiation between similar experiences.
- Understanding how encoding quality influences memory discrimination is key to explaining memory accuracy and errors.
Purpose of the Study:
- To investigate the role of encoding quality in classifying similar memory lures.
- To examine the relationship between on-task behavior during encoding and subsequent memory performance.
Main Methods:
- An object recognition task was employed with thought probes during the study phase.
- Similar lures were presented during the test phase to assess memory discrimination.
- Analyses included both within-subject and between-subjects comparisons of on-task reports.
Main Results:
- Reports of being "on-task" during study were linked to better discrimination of lures.
- Within-subject analyses also revealed that on-task reports correlated with falsely identifying lures as studied items.
- These findings suggest a dual role for encoding quality in memory accuracy and errors.
Conclusions:
- Quality encoding enhances the ability to reject similar memory lures.
- Inaccurate comparisons between perceptions and memories, even with quality encoding, can result in false alarms.
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