Journal article
Tracking the relation between gist and item memory over the course of long-term memory consolidation
eLife, v 10, e65588
14 Jul 2021
PMID: 34259626
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Our experiences in the world support memories not only of specific episodes but also of the generalities (the ‘gist’) across related experiences. It remains unclear how these two types of memories evolve and influence one another over time. In two experiments, 173 human participants encoded spatial locations from a distribution and reported both item memory (specific locations) and gist memory (center for the locations) across 1–2 months. Experiment 1 demonstrated that after 1 month, gist memory was preserved relative to item memory, despite a persistent positive correlation between them. Critically, item memories were biased toward the gist over time. Experiment 2 showed that a spatial outlier item changed this relationship and that the extraction of gist is sensitive to the regularities of items. Our results suggest that the gist starts to guide item memories over longer durations as their relative strengths change.
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Details
- Title
- Tracking the relation between gist and item memory over the course of long-term memory consolidation
- Creators
- Tima Zeng - University of PennsylvaniaAlexa Tompary - University of PennsylvaniaAnna C Schapiro - University of PennsylvaniaSharon L Thompson-Schill - University of Pennsylvania
- Publication Details
- eLife, v 10, e65588
- Publisher
- eLife
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Psychological and Brain Sciences (Psychology)
- Web of Science ID
- WOS:000680828400001
- Scopus ID
- 2-s2.0-85111438025
- Other Identifier
- 991021448028804721
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