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Refreshing Multi-Feature Objects in Visual Working Memory
1Center for Psychology, Faculty of Psychology and Education Sciences, University of Porto, Portugal.
Journal of Cognition
|October 6, 2025
Summary
Refreshing working memory representations of multi-feature objects enhances recall of both features, suggesting it maintains integrated object representations rather than individual features. This improves object accessibility.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Memory
Background:
- Working memory is crucial for cognitive tasks.
- Refreshing representations is thought to boost accessibility.
- Previous research showed refreshing individual features improves recall.
Purpose of the Study:
- To investigate if refreshing modulates accessibility of multi-feature objects.
- To determine if refreshing maintains feature bindings or individual features.
- To examine the impact of refreshing on integrated object representations.
Main Methods:
- Used a "think-of" cue procedure combined with recognition and dual-feature report tasks.
- Participants encoded four colored shapes and were cued to refresh them 0, 1, or 2 times.
- Tested recognition of match/mismatch probes and dual-feature recall.
Main Results:
- Refreshing improved recognition of correct object probes.
- Refreshing did not improve rejection of probes with mismatched features (intrusions).
- Refreshing increased correct recall of both features of an object, not single features.
Conclusions:
- Refreshing appears to act on the integrated representation of an object.
- Not refreshing objects led to all-or-none loss of accessibility, not increased binding fragility.
- Refreshing benefits the maintenance of multi-feature object representations in working memory.
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