Evidence map›Paper›PMID 36719044›Full record

ArticleSleep2023

Sleep spindles in the healthy brain from birth through 18 years.

Hunki Kwon, Katherine G Walsh, Erin D Berja, Dara S Manoach, Uri T Eden, Mark A Kramer, Catherine J Chu

Open access · bronzeAbstract 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 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  9. Auditory-evoked changes in slow oscillations and spindles correlate with memory consolidation in children with epilepsy and controls.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. 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
  18. Observational
  19. Review
  20. Observational
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

7 authors at 2 institutions in 1 country.

Hunki KwonDepartment of Neurology, Massachusetts General Hospital, Boston, MA, USA.
Katherine G WalshDepartment of Neurology, Massachusetts General Hospital, Boston, MA, USA.
Erin D BerjaDepartment of Neurology, Massachusetts General Hospital, Boston, MA, USA.
Dara S ManoachHarvard Medical School, Boston, MA, USA.
Uri T EdenDepartment of Mathematics and Statistics, Boston University, Boston, MA, USA.
Mark A KramerDepartment of Mathematics and Statistics, Boston University, Boston, MA, USA.
Catherine J ChuDepartment of Neurology, Massachusetts General Hospital, Boston, MA, USA.ORCID 0000-0001-7670-9313
Harvard University · USBoston University · US

Funding

Focal Thalamocortical Circuit Dysfunction Mediates Motor and Cognitive Deficits in Developmental EpilepsyR01NS115868 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI CHU, CATHERINE J · 2020 to 2024
$3.4M
NINDS NIH HHS R01 NS115868
6 · The paper itself

Abstract

STUDY

objectiveSleep spindles are present from birth and reflect cognitive functions across the lifespan, but normative values for this cognitive biomarker across development are lacking. This study aims to establish normative spindle features over development.

methodsAll available normal 19-channel electroencephalograms from developmentally normal children between February 2002 and June 2021 in the MGH EEG lab were analyzed. Approximately, 20 000 spindles were hand-marked to train and validate an automated spindle detector across ages. Normative values for spindle rate, duration, frequency, refractory period, and interhemispheric lag are provided for each channel and each age.

resultsSleep EEGs from 567 developmentally normal children (range 0 days to 18 years) were included. The detector had excellent performance (F1 = 0.47). Maximal spindle activity is seen over central regions during infancy and adolescence and frontopolar regions during childhood. Spindle rate and duration increase nonlinearly, with the most rapid changes during the first 4 months of life and between ages 3 and 14 years. Peak spindle frequency follows a U-shaped curve and discrete frontal slow and central fast spindles are evident by 18 months. Spindle refractory periods decrease between ages 1 and 14 years while interhemispheric asynchrony decreases over the first 3 months of life and between ages 1 and 14 years.

conclusionsThese data provide age- and region-specific normative values for sleep spindles across development, where measures that deviate from these values can be considered pathological. As spindles provide a noninvasive biomarker for cognitive function across the lifespan, these normative measures can accelerate the discovery and diagnosis in neurodevelopmental disorders.

Indexed as

SleepSleep StagesAdolescentBrainChildChild, PreschoolCognitionElectroencephalographyHumansInfantAutomatic spindle detectorBiomarkerDevelopmentSleep spindle

Identifiers

PMID36719044
PMCPMC10091086
OpenAlexW4318667340

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.