Characteristics of sleep EEG power spectra in healthy infants in the first two years of life

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
Mangalam SankupellayC Dakin

Abstract

This study characterises and describes the maturational evolution of the healthy infant sleep electroencephalogram (EEG) longitudinally from 2 weeks to 24 months of age, by means of power spectral analysis. A prospective cohort of 34 healthy infants underwent overnight polysomnography (PSG) at 2 weeks, and at 3, 6, 12 and 24 months of age. Sleep epochs were scored as Active Sleep (AS) and Quiet Sleep (QS) at 2 weeks of age and as Rapid Eye Movement (REM) and Non-REM (NREM) stages from 3 months onwards. Representative epochs were used to generate the EEG power spectra, from the central C3 derivation. These were analysed visually and quantitatively in AS/REM and QS/NREM sleep in the following bandwidths: delta (0.5-4 Hz); theta (4-8 Hz); alpha (8-11 Hz); sigma (11-15 Hz) and 0.5-25 Hz. Sleep EEG (central derivation) power spectra changed significantly in the different bandwidths as the infants matured. The emergence of a peak in the sigma bandwidth in NREM N2 sleep corresponded with the development of sleep spindles. Maturational changes were also seen in NREM N3 and in theta and alpha bandwidths in both AS/REM and QS/NREM. Sleep EEG power spectra characteristics in healthy infants evolve in keeping with maturation and neurodevel...Continue Reading

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Citations

Jun 16, 2012·Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine·Madeleine M Grigg-Damberger
Jan 15, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·C J ChuS S Cash
Feb 9, 2016·Journal of Sleep Research·Luana NovelliLuigi De Gennaro
Nov 2, 2015·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Anna-Liisa SatomaaSari-Leena Himanen
Jun 14, 2016·Brain and Language·Katharine N S SimonRebecca L Gómez
Jul 27, 2014·Archives of Disease in Childhood·Philip Ian TerrillChloe Parsley
Jul 20, 2017·Developmental Science·Klára HorváthKim Plunkett
Apr 26, 2018·Cost Effectiveness and Resource Allocation : C/E·Karin M Vermeulen, Paul F M Krabbe
Oct 28, 2019·Sleep·María Corsi-CabreraThalia Harmony
Oct 2, 2019·International Journal of Environmental Research and Public Health·Serena ScarpelliLuigi De Gennaro
Aug 29, 2017·Neural Plasticity·Eckehard OlbrichPeter Achermann

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