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The effect of instructed refreshing on working memory: Is the memory boost a function of refreshing frequency or
Evie Vergauwe1, Alessandra S Souza2,3, Naomi Langerock4
1Faculté de Psychologie et des Sciences de l'Education, Université de Genève, 40 Bd du Pont d'Arve, 1211, Geneva 4, Switzerland. Evie.Vergauwe@unige.ch.
Memory & Cognition
|December 2, 2024
Summary
Refreshing working memory boosts recall by reactivating items. This study found that the number of refreshing instances, not duration, improved memory, supporting the selection hypothesis but with limitations.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Memory Research
Background:
- Refreshing is theorized to enhance working memory by reactivating attended items.
- The precise mechanism of this memory boost (selection vs. duration) remains debated.
Purpose of the Study:
- To investigate whether the working memory refreshing effect is constant or time-dependent.
- To differentiate between the selection hypothesis and the duration hypothesis of memory refreshing.
Main Methods:
- Participants were instructed to refresh items in working memory using cues.
- The number of refreshing steps and their duration were independently manipulated.
- Recall performance was measured to assess memory enhancement.
Main Results:
- The number of refreshing steps significantly impacted recall performance.
- The duration of refreshing did not show a significant effect on recall.
- Findings align with the selection hypothesis but indicate context-dependent effects.
Conclusions:
- Memory benefits from refreshing appear to depend on the selection of items, not the time spent refreshing.
- The effectiveness of instructed refreshing may be constrained by specific task parameters.
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