Evidence map›Paper›PMID 32770211›Full record

ArticleSleep2021

Sleep-wake regulation in preterm and term infants.

Anastasis Georgoulas, Laura Jones, Maria Pureza Laudiano-Dray, Judith Meek, Lorenzo Fabrizi, Kimberley Whitehead

Abstract read
In one paragraph

Article in Sleep, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. The Ontogenetic Development of Rapid Eye Movement Sleep in Early Life and Its Regulatory Mechanisms.International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2026
    Review
  5. Review
  6. Article
  7. Review
  8. Docosahexaenoic Acid and Sleep Quality in Very and Extreme Preterm Infants.International journal of environmental research and public health · 2024
    Article
  9. Article
  10. Article
  11. Machine Learning-Derived Active Sleep as an Early Predictor of White Matter Development in Preterm Infants.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  12. Article
  13. Parent Experiences in the NICU and Transition to Home.International journal of environmental research and public health · 2023
    Article
  14. Review
  15. Observational
  16. Article
  17. Article
  18. Article
  19. Review
  20. Prognostic value of neonatal EEG following therapeutic hypothermia in survivors of hypoxic-ischemic encephalopathy.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2021
    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

6 authors.

Anastasis GeorgoulasResearch IT Services, University College London, London, United Kingdom.
Laura JonesDepartment of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom.
Maria Pureza Laudiano-DrayDepartment of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom.
Judith MeekElizabeth Garrett Anderson Wing, University College London Hospitals, London, United Kingdom.
Lorenzo FabriziDepartment of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom.
Kimberley WhiteheadDepartment of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom.

Funding

Medical Research Council MC_PC_17180Medical Research Council MR/L019248/1Medical Research Council MR/S003207/1
6 · The paper itself

Abstract

STUDY

objectivesIn adults, wakefulness can be markedly prolonged at the expense of sleep, e.g. to stay vigilant in the presence of a stressor. These extra-long wake bouts result in a heavy-tailed distribution (highly right-skewed) of wake but not sleep durations. In infants, the relative importance of wakefulness and sleep are reversed, as sleep is necessary for brain maturation. Here, we tested whether these developmental pressures are associated with the unique regulation of sleep-wake states.

methodsIn 175 infants of 28-40 weeks postmenstrual age (PMA), we monitored sleep-wake states using electroencephalography and behavior. We constructed survival models of sleep-wake bout durations and the effect of PMA and other factors, including stress (salivary cortisol), and examined whether sleep is resilient to nociceptive perturbations (a clinically necessary heel lance).

resultsWake durations followed a heavy-tailed distribution as in adults and lengthened with PMA and stress. However, differently from adults, active sleep durations also had a heavy-tailed distribution, and with PMA, these shortened and became vulnerable to nociception-associated awakenings.

conclusionsSleep bouts are differently regulated in infants, with especially long active sleep durations that could consolidate this state's maturational functions. Curtailment of sleep by stress and nociception may be disadvantageous, especially for preterm infants given the limited value of wakefulness at this age. This could be addressed by environmental interventions in the future.

Indexed as

Infant, PrematureSleepElectroencephalographyHumansHydrocortisoneInfantInfant, NewbornWakefulnessHydrocortisoneneonatepainpremature

Identifiers

PMID32770211
PMCPMC7819838

What OpenQuestion holds

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LicenceCC BY
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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.