Evidence map›Paper›PMID 36462190›Full record

ArticleSleep2023

The memory sources of dreams: serial awakenings across sleep stages and time of night.

Claudia Picard-Deland, Karen Konkoly, Rachel Raider, Ken A Paller, Tore Nielsen, Wilfred R Pigeon, Michelle Carr

Abstract read
In one paragraph

Article in Sleep, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

  1. Article
  2. Experimentally manipulating dream content by reactivating a remote emotional memory.Sleep advances : a journal of the Sleep Research Society · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. A dream EEG and mentation database.Nature communications · 2025
    Article
  9. Article
  10. Article
  11. Experimentally inducing dreams of remote emotional memory.Sleep advances : a journal of the Sleep Research Society · 2025
    Article
  12. Article
  13. New strategies for the cognitive science of dreaming.Trends in cognitive sciences · 2024
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Memory updating in dreams.Sleep advances : a journal of the Sleep Research Society · 2024
    Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Claudia Picard-DelandDepartment of Neuroscience, University of Montreal, Montreal, Quebec, Canada.
Karen KonkolyDepartment of Psychology, Northwestern University, Evanston, IL, USA.
Rachel RaiderDepartment of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA.ORCID 0000-0003-1672-0005
Ken A PallerDepartment of Psychology, Northwestern University, Evanston, IL, USA.ORCID 0000-0003-4415-4143
Tore NielsenDepartment of Psychiatry and Addictology, University of Montreal, Montreal, Quebec, Canada.ORCID 0000-0002-9372-8652
Wilfred R PigeonDepartment of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA.ORCID 0000-0002-5753-7840
Michelle CarrDepartment of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA.

Funding

Rochester Partnership to Advance Research and Academic Careers in Deaf ScholarsK12GM106997 · NIGMS · UNIVERSITY OF ROCHESTER · PI BUCKLEY, GERARD J., DEWHURST, STEPHEN · 2015 to 2024
$6.9M
NIGMS NIH HHS K12 GM106997
6 · The paper itself

Abstract

Memories of waking-life events are incorporated into dreams, but their incorporation is not uniform across a night of sleep. This study aimed to elucidate ways in which such memory sources vary by sleep stage and time of night. Twenty healthy participants (11 F; 24.1 ± 5.7 years) spent a night in the laboratory and were awakened for dream collection approximately 12 times spread across early, middle, and late periods of sleep, while covering all stages of sleep (N1, N2, N3, REM). In the morning, participants identified and dated associated memories of waking-life events for each dream report, when possible. The incorporation of recent memory sources in dreams was more frequent in N1 and REM than in other sleep stages. The incorporation of distant memories from over a week ago, semantic memories not traceable to a single event, and anticipated future events remained stable throughout sleep. In contrast, the relative proportions of recent versus distant memory sources changed across the night, independently of sleep stage, with late-night dreams in all stages having relatively less recent and more remote memory sources than dreams earlier in the night. Qualitatively, dreams tended to repeat similar themes across the night and in different sleep stages. The present findings clarify the temporal course of memory incorporations in dreams, highlighting a specific connection between time of night and the temporal remoteness of memories. We discuss how dream content may, at least in part, reflect the mechanisms of sleep-dependent memory consolidation.

Indexed as

DreamsSleep, REMHumansMemorySleepSleep Stagesdreamingepisodic memorymemory sourcesNREM sleepREM sleepsemantic memoryserial awakeningssleep stagestemporal changes

Identifiers

PMID36462190
PMCPMC10091095

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.