Evidence map›Paper›PMID 35135852›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2022

Human NREM Sleep Promotes Brain-Wide Vasomotor and Respiratory Pulsations.

Heta Helakari, Vesa Korhonen, Sebastian C Holst, Johanna Piispala, Mika Kallio, Tommi Väyrynen, Niko Huotari, Lauri Raitamaa, Johanna Tuunanen, Janne Kananen and 7 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
11.3field-weighted citation impact, top 1% 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

72 citing papers in PubMed, 114 citations in OpenAlex.

  1. Trial
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  4. Article
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  6. Review
  7. Inhibitory Decay and Supercritical Brain Dynamics During Sleep Deprivation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  8. Review
  9. Infra-slow (<0.1 Hz) Modulation of Human Brain Pulsations in Awake and Sleep States.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  10. Article
  11. Article
  12. Sleep Alters the Velocity of Physiological Brain Pulsations in Humans.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  13. Sleep alters neurovascular and hydrodynamic coupling in the human brain.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  14. Sleep deprivation exhibits an age-dependent effect on infraslow global brain activity.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  15. Article
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  18. Article
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  20. Review

12 more citing papers are in PubMed but not listed here.

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

17 authors at 3 institutions in 3 countries.

Heta HelakariOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland vesa.kiviniemi@oulu.fi heta.helakari@oulu.fi.ORCID 0000-0002-4354-4687
Vesa KorhonenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Sebastian C HolstNeurobiology Research Unit, University of Copenhagen, 2200 Copenhagen, Denmark.
Johanna PiispalaMedical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, 90220 Oulu, Finland.
Mika KallioMedical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, 90220 Oulu, Finland.ORCID 0000-0002-7908-9823
Tommi VäyrynenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Niko HuotariOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Lauri RaitamaaOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Johanna TuunanenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.ORCID 0000-0002-3065-8124
Janne KananenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.ORCID 0000-0001-6831-8056
Matti JärveläOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Timo TuovinenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.ORCID 0000-0001-7079-3673
Ville RaatikainenOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Viola BorchardtOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland.
Hannu KinnunenOura Health, 90590 Oulu, Finland.
Maiken NedergaardCenter of Translational Neuromedicine, University of Copenhagen, 2200 Copenhagen, Denmark.
Vesa KiviniemiOulu Functional Neuroimaging, Department of Diagnostic Radiology, Oulu University Hospital, 90220 Oulu, Finland vesa.kiviniemi@oulu.fi heta.helakari@oulu.fi.ORCID 0000-0003-0184-8524
Oulu University Hospital · FIUniversity of Copenhagen · DKOulu University of Applied Sciences · FI

Funding

Age and AD related bottlenecks in glymphatic-lymphatic waste transportRF1AG057575 · NIA · UNIVERSITY OF ROCHESTER · PI NEDERGAARD, MAIKEN · 2017 to 2017
$3.2M
Capillary hyperemia in white matter: Novel mechanistic insight and effect of hypertension and agingRF1NS110049 · NINDS · UNIVERSITY OF ROCHESTER · PI NEDERGAARD, MAIKEN, WAN, JIANDI · 2018 to 2018
$2.9M
NIA NIH HHS RF1 AG057575NINDS NIH HHS RF1 NS110049
6 · The paper itself

Abstract

The physiological underpinnings of the necessity of sleep remain uncertain. Recent evidence suggests that sleep increases the convection of cerebrospinal fluid (CSF) and promotes the export of interstitial solutes, thus providing a framework to explain why all vertebrate species require sleep. Cardiovascular, respiratory and vasomotor brain pulsations have each been shown to drive CSF flow along perivascular spaces, yet it is unknown how such pulsations may change during sleep in humans. To investigate these pulsation phenomena in relation to sleep, we simultaneously recorded fast fMRI, magnetic resonance encephalography (MREG), and electroencephalography (EEG) signals in a group of healthy volunteers. We quantified sleep-related changes in the signal frequency distributions by spectral entropy analysis and calculated the strength of the physiological (vasomotor, respiratory, and cardiac) brain pulsations by power sum analysis in 15 subjects (age 26.5 ± 4.2 years, 6 females). Finally, we identified spatial similarities between EEG slow oscillation (0.2-2 Hz) power and MREG pulsations. Compared with wakefulness, nonrapid eye movement (NREM) sleep was characterized by reduced spectral entropy and increased brain pulsation intensity. These effects were most pronounced in posterior brain areas for very low-frequency (≤0.1 Hz) vasomotor pulsations but were also evident brain-wide for respiratory pulsations, and to a lesser extent for cardiac brain pulsations. There was increased EEG slow oscillation power in brain regions spatially overlapping with those showing sleep-related MREG pulsation changes. We suggest that reduced spectral entropy and enhanced pulsation intensity are characteristic of NREM sleep. With our findings of increased power of slow oscillation, the present results support the proposition that sleep promotes fluid transport in human brain.

Indexed as

BrainElectroencephalographyFemaleHumansMagnetic Resonance ImagingMaleSleepWakefulnessbrain pulsationsfast fMRIglymphatic clearancesleepslow-wave EEGspectral power

Identifiers

PMID35135852
PMCPMC8944230
OpenAlexW4210901950

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.