Evidence map›Paper›PMID 41775945›Full record

ArticleNpj biological timing and sleep2026

Tracing infant sleep neurophysiology longitudinally from 3 to 6 months: EEG insights into brain development.

Matthieu Beaugrand, Valeria Jaramillo, Christophe Mühlematter, Sarah F Schoch, Vivien Reicher, Andjela Markovic, Salome Kurth

Abstract read
In one paragraph

Article in Npj biological timing and sleep, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. 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

7 authors.

Matthieu BeaugrandUniversity of Fribourg, Department of Psychology, Fribourg, Switzerland.
Valeria JaramilloUniversity of Surrey, Surrey Sleep Research Centre, Guildford, United Kingdom.
Christophe MühlematterUniversity of Fribourg, Department of Psychology, Fribourg, Switzerland.
Sarah F SchochUniversity Hospital Zurich, Department of Pulmonology, Zurich, Switzerland.
Vivien ReicherDepartment of Ethology, ELTE Eötvös Loránd University, Budapest, Hungary.
Andjela MarkovicUniversity of Fribourg, Department of Psychology, Fribourg, Switzerland.
Salome KurthUniversity of Fribourg, Department of Psychology, Fribourg, Switzerland. salome.kurth@unifr.ch.

Funding

Eötvös Hungarian State Scholarship MAEÖ-00098-005/2021Swiss National Science Foundation PCEFP1-181279University of Fribourg Research Pool Grant 23-05University Research Scholarship Programme of the Ministry for Culture and Innovation from the source of the National Research, Developmental and Innovation Fund (2024-2.1.1-EKÖP-2024-00004
6 · The paper itself

Abstract

Sleep is critical for brain plasticity during early development, yet individual maturation of sleep neurophysiology in infancy remains poorly characterized. Slow wave activity (SWA) is a key marker of cortical maturation and experience-dependent plasticity, making early regional sleep dynamics highly relevant for neurodevelopmental health. We conducted a longitudinal high-density EEG study in 11 healthy infants, of whom 9 contributed analyzable EEG data at both 3 and 6 months. We assessed non-rapid eye movement (NREM) sleep and analyzed the maturation of SWA (0.75-4.25 Hz), theta power (4.5-7.5 Hz), and sigma power (9.75-14.75 Hz) across scalp regions and their associations with behavioral development. From 3 to 6 months, SWA increased maximally in occipital regions, while theta power exhibited a global increase. Sigma power, initially concentrated centrally, dispersed towards frontal regions. Greater frontal power increases correlated with higher motor (theta) and personal-social skill scores (sigma) at 6 months. These findings establish a framework for typical infant sleep EEG maturation, highlighting frequency-specific and regionally distinct developmental patterns. This study provides the first longitudinal evidence that early changes in sleep EEG topography reflect individual developmental trajectories, supporting its utility as a non-invasive and yet precise biomarker for early identification of atypical neurodevelopment at preverbal ages.

Identifiers

PMID41775945
PMCPMC12957383

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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.