Evidence map›Paper›PMID 29271015›Full record

ArticleJournal of sleep research2019

The effect of daytime napping and full-night sleep on the consolidation of declarative and procedural information.

Frank J van Schalkwijk, Cornelia Sauter, Kerstin Hoedlmoser, Dominik P J Heib, Gerhard Klösch, Doris Moser, Georg Gruber, Peter Anderer, Josef Zeitlhofer, Manuel Schabus

Open access · hybridAbstract read
In one paragraph

Article in Journal of sleep research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
2.4field-weighted citation impact, top 11% of its field
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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Effects of a Short Daytime Nap on the Cognitive Performance: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2021
    Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Article
  7. Sex Differences in the Role of Sleep on Cognition in Older Adults.medRxiv : the preprint server for health sciences · 2024
    Article
  8. Sex differences in the role of sleep on cognition in older adults.Sleep advances : a journal of the Sleep Research Society · 2024
    Article
  9. [Current developments in sleep research and sleep medicine: an assessment of the "Paediatrics" taskforce].Somnologie : Schlafforschung und Schlafmedizin = Somnology : sleep research and sleep medicine · 2022
    Review
  10. Sleep Spindles Preferentially Consolidate Weakly Encoded Memories.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Role of Napping for Learning across the Lifespan.Current sleep medicine reports · 2020
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Frank J van SchalkwijkLaboratory for Sleep, Cognition and Consciousness Research, Centre for Cognitive Neuroscience (CCNS), University of Salzburg, Salzburg, Austria.ORCID 0000-0001-8291-652X
Cornelia SauterDepartment of Neurology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-9064-2773
Kerstin HoedlmoserLaboratory for Sleep, Cognition and Consciousness Research, Centre for Cognitive Neuroscience (CCNS), University of Salzburg, Salzburg, Austria.
Dominik P J HeibLaboratory for Sleep, Cognition and Consciousness Research, Centre for Cognitive Neuroscience (CCNS), University of Salzburg, Salzburg, Austria.
Gerhard KlöschDepartment of Neurology, Medical University of Vienna, Vienna, Austria.
Doris MoserDepartment of Neurology, Medical University of Vienna, Vienna, Austria.
Georg GruberDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Peter AndererDepartment of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
Josef ZeitlhoferDepartment of Neurology, Medical University of Vienna, Vienna, Austria.
Manuel SchabusLaboratory for Sleep, Cognition and Consciousness Research, Centre for Cognitive Neuroscience (CCNS), University of Salzburg, Salzburg, Austria.
Medical University of Vienna · ATUniversity of Salzburg · AT

Funding

Austrian Science Fund P-15370-B02Austrian Science Fund W1233-G17Austrian Science Fund FWF W 1233
6 · The paper itself

Abstract

Many studies investigating sleep and memory consolidation have evaluated full-night sleep rather than alternative sleep periods such as daytime naps. This multi-centre study followed up on, and was compared with, an earlier full-night study (Schabus et al., 2004) investigating the relevance of daytime naps for the consolidation of declarative and procedural memory. Seventy-six participants were randomly assigned to a nap or wake group, and performed a declarative word-pair association or procedural mirror-tracing task. Performance changes from before to after a 90-min retention interval filled with sleep or quiet wakefulness were evaluated between groups. Associations between performance changes, sleep architecture, spindles, and slow oscillations were investigated. For the declarative task we observed a trend towards stronger forgetting across a wake period compared with a nap period, and a trend towards memory increase over the full-night. For the procedural task, accuracy was significantly decreased following daytime wakefulness, showed a trend to increase with a daytime nap, and significantly increased across full-night sleep. For the nap protocol, neither sleep stages, spindles, nor slow oscillations predicted performance changes. A direct comparison of day and nighttime sleep revealed that daytime naps are characterized by significantly lower spindle density, but higher spindle activity and amplitude compared with full-night sleep. In summary, data indicate that daytime naps protect procedural memories from deterioration, whereas full-night sleep improves performance. Given behavioural and physiological differences between day and nighttime sleep, future studies should try to characterize potential differential effects of full-night and daytime sleep with regard to sleep-dependent memory consolidation.

Indexed as

AdultFemaleHumansMalePolysomnographySleepWakefulnessYoung Adultmemorymirror-tracingpolysomnographyspindlesword-pair learning

Identifiers

PMID29271015
PMCPMC6378597
OpenAlexW2776415519

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.