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A negative effect of repetition in episodic memory
Daniel J Peterson1, Neil W Mulligan
1Department of Psychology, Galesburg, IL 61401, USA. dpeterso@knox.edu.
Summary
Repetition typically improves memory recall, but this study found a negative repetition effect. Participants recalling fewer targets after studying pairs twice suggests initial presentation hindered organizational processing, impacting memory performance.
Area of Science:
- Cognitive Psychology
- Human Memory Research
- Learning and Recall
Background:
- The foundational principle of human memory suggests repetition enhances recall.
- Previous research consistently supports the benefits of repeated stimulus exposure for memory.
- This study investigates a deviation from the norm: the negative repetition effect.
Purpose of the Study:
- To investigate the phenomenon of a negative repetition effect in human memory.
- To examine how initial presentation format influences recall despite subsequent repetitions.
- To test the item-specific-relational account of memory.
Main Methods:
- Participants studied cue-target pairs.
- One group studied pairs once; another group studied pairs twice.
- Initial presentation format was manipulated to affect organizational processing.
Main Results:
- Participants studying pairs twice recalled fewer targets than those studying once (negative repetition effect).
- Initial hindered organizational processing persisted even after a second presentation.
- Participants failed to capitalize on improved structural presentation in the repeated condition.
Conclusions:
- The findings challenge the universal applicability of the repetition-improves-recall principle.
- Initial encoding strategies significantly impact long-term memory performance.
- Results provide compelling support for the item-specific-relational account of memory.
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