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Long-term memory

Do stories help us link memories of distant events?

Cohn-Sheehy BI, Delarazan AI, Crivelli-Decker JE, et al. · Memory & cognition · 2022

Open access · cc by · source: Europe PMC

Connecting unrelated, separate experiences into a single, cohesive story makes those events easier to remember later, even if they happened far apart in time.

How this study connects

Role on claims

Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.

  • SupportsEpisodic Memoryconcept

    Structuring temporally distant experiences into a coherent narrative acts as an effective cognitive bridge, substantially boosting the free recall of those integrated events.

    Evidence for the claim as stated.

  • SupportsMemory Consolidationconcept

    Events are consolidated as structured units, not as an undifferentiated stream.

    What is consolidated is shaped by the structure imposed at encoding. Coherent narratives raised recalled detail for distant events (d = 0.62 and 0.41 across sleep and wake groups), and crossing a spatial boundary between two objects reduced later memory for their order even after physical distance and elapsed time were controlled.

    Evidence for the claim as stated.

Study at a glance

Design
Human experiment — Custom stories recalled immediately vs after 24 h; distant events embedded in a coherent narrative
N
N=72 · 78 UC Davis undergraduates recruited; 36 immediate and 36 delayed recall
Population
Psychology undergraduates aged 18–30
Outcome
Recall of temporally distant events with vs without a bridging narrative, immediately and after 24 hours

Structured fields used in claim comparison tables when every cited study has a complete layer.

Inspect source passages

Do stories help us link memories of distant events?

These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.

three behavioral experiments

We conducted three behavioral experiments to test the idea that narratives can facilitate event recall, even when the events that form the narrative occur in distinct temporal contexts (i.e., are temporally distant).

four fictional stories

We constructed four fictional stories in which we manipulated whether temporally distant events could form a coherent narrative (see Fig. ; Supplemental Dataset ).
Read passages in the original paper

Key findings

Across the experiments, participants recalled significantly more details about events when they formed a coherent narrative. For example, in the sleep experiment, both wake and sleep groups recalled more details for coherent than unrelated events, with medium effect sizes (Cohen's d of 0.62 and 0.41, respectively). Furthermore, the benefits of coherence were observed even without a long retention delay, showing that sleep is not necessary to integrate these memories.

Methodology

Across three behavioral experiments, researchers had participants listen to four fictional stories. These stories featured side-characters who appeared in two separate events that were temporally distant. For some participants, these two events formed a coherent narrative, while for others, they described unrelated situations. Researchers then measured free recall either immediately, after a 12-hour wake or sleep interval, or after a 24-hour delay.

Limitations

The study relied on a specific sample of young adult college students, meaning the results may not apply to older adults or clinical populations with memory deficits. Additionally, the experiments used highly controlled audio stories, which might not reflect how people integrate complex, multi-sensory events in daily life. Conflicting results between the experimental groups also suggest that unmeasured cohort differences could have influenced how delay affected overall recall.

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