Evidence map›Paper›PMID 25845686›Full record

ArticleSleep2015

The Multidimensional Aspects of Sleep Spindles and Their Relationship to Word-Pair Memory Consolidation.

Caroline Lustenberger, Flavia Wehrle, Laura Tüshaus, Peter Achermann, Reto Huber

Abstract readClinical Study
In one paragraph

Article in Sleep, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing 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

49 citing papers in PubMed.

  1. Trial
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  9. Sleep Spindle Abnormalities in Preschool Children With Autism Spectrum Disability: Insights From Nap Polysomnography.Autism research : official journal of the International Society for Autism Research · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Sleep spindle density and temporal clustering are associated with sleep-dependent memory consolidation in Parkinson's disease.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  15. Article
  16. Neural reactivation during human sleep.Emerging topics in life sciences · 2023
    Review
  17. Article
  18. Article
  19. Article
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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

5 authors.

Caroline LustenbergerUniversity Children's Hospital Zurich, Child Development Center, Zurich, Switzerland.
Flavia WehrleUniversity Hospital Zurich, Switzerland.
Laura TüshausUniversity of Zurich, Institute of Pharmacology and Toxicology, Zurich, Switzerland.
Peter AchermannUniversity of Zurich, Institute of Pharmacology and Toxicology, Zurich, Switzerland.
Reto HuberUniversity Children's Hospital Zurich, Child Development Center, Zurich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesSeveral studies proposed a link between sleep spindles and sleep dependent memory consolidation in declarative learning tasks. In addition to these state-like aspects of sleep spindles, they have also trait-like characteristics, i.e., were related to general cognitive performance, an important distinction that has often been neglected in correlative studies. Furthermore, from the multitude of different sleep spindle measures, often just one specific aspect was analyzed. Thus, we aimed at taking multidimensional aspects of sleep spindles into account when exploring their relationship to word-pair memory consolidation.

designEach subject underwent 2 study nights with all-night high-density electroencephalographic (EEG) recordings. Sleep spindles were automatically detected in all EEG channels. Subjects were trained and tested on a word-pair learning task in the evening, and retested in the morning to assess sleep related memory consolidation (overnight retention). Trait-like aspects refer to the mean of both nights and state-like aspects were calculated as the difference between night 1 and night 2.

settingSleep laboratory.

participantsTwenty healthy male subjects (age: 23.3 ± 2.1 y). MEASUREMENTS AND

resultsOvernight retention was negatively correlated with trait-like aspects of fast sleep spindle density and positively with slow spindle density on a global level. In contrast, state-like aspects were observed for integrated slow spindle activity, which was positively related to the differences in overnight retention in specific regions.

conclusionOur results demonstrate the importance of a multidimensional approach when investigating the relationship between sleep spindles and memory consolidation and thereby provide a more complete picture explaining divergent findings in the literature.

Indexed as

LanguageCuesElectroencephalographyHumansMaleMemory ConsolidationMental RecallPaired-Associate LearningPolysomnographySleepYoung Adultdeclarative learning tasksintegrated spindle activitysleep spindle densitystate-liketrait-like

Identifiers

PMID25845686
PMCPMC4481015

What OpenQuestion holds

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Registered trials

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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.