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Updated: Jun 25, 2026
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Published on: May 9, 2019
Long-term repetition priming of briefly identified objects
Andreas T Breuer1, Michael E J Masson, Anna-Lisa Cohen
1Department of Psychology, University of Victoria, Victoria, BC, Canada. abreuer@uvic.ca
Summary
Long-term memory encoding is possible even with brief object presentations in rapid serial visual presentation lists. This challenges previous theories by showing memory consolidation occurs despite rapid stimulus succession.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Memory Research
Background:
- Previous research suggested memory consolidation requires hundreds of milliseconds of uninterrupted processing.
- Rapid serial visual presentation (RSVP) lists, with brief object exposures, were thought to hinder long-term memory encoding.
- This challenged the understanding of memory formation under time-constrained conditions.
Purpose of the Study:
- To investigate if long-term memory encoding can occur for briefly presented objects within RSVP lists.
- To challenge the notion that rapid stimulus succession prevents memory consolidation.
- To explore the nature of encoded information and rule out working memory contributions.
Main Methods:
- Participants performed a visual search task with items presented for only 75 ms.
- Nontarget items from the search task were tested using indirect memory measures (search and object identification).
- Experiments were designed to differentiate between long-term memory encoding and working memory maintenance.
Main Results:
- Nontargets from the RSVP list produced priming effects on subsequent memory tests.
- Encoded information included both perceptual and conceptual details.
- Results indicated that memory encoding occurred independently of maintaining items in working memory.
Conclusions:
- Long-term memory encoding is feasible for stimuli presented very briefly in RSVP lists.
- The findings contradict theories requiring prolonged, uninterrupted processing for memory consolidation.
- Stimulus processing can occur at later cognitive stages even with rapid subsequent stimuli, aligning with neurophysiological data.
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