Study on the effect of sleep modulation based on photobiomodulation
SONG Fanlei
ZHOU Lu
LOU Yajun
WANG Xuejing
XU Fanyao
QIAN Zhiyu
Abstract：In order to explore the influence of photobiomodulation on the sleep regulation effect,the 860 nm near-infrared light with different frequencies(40,70,110 Hz)were used to induce sleep.Firstly,the electroencephalography(EEG)signals were col-lected for preprocessing,gravity frequency calculation,and time-frequency analysis;secondly,the gravity frequencies and band ener-gies of EEG signals of different frequencies were compared;finally,statistical analysis was performed.The results showed that photobi-omodulation caused the gravity frequency of the brain to be shifted downward,the power of α,θ,and δ bands of the EEG signals was significantly enhanced,and the change of the gravity frequency center of the sleep-related brain regions was significant,which was conducive to fall asleep.This study provides experimental basis and parameter reference for the application of photobiomodulation in in-ducing sleep,is helpful to further understands its mechanism of regulating sleep.
Keywords：Sleep modulationPhotobiomodulationElectroencephalographyElectroencephalographic rhythmsJoint time-frequen-cy domain analysisPaired t test
Publication Date：2025-02-28
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：8( 8-15 )