Can state or response entropy be used as a measure of sleep depth?
Mahon, P Greene, B R Lynch, E M McNamara, B Shorten, G D
Mahon, P
Greene, B R
Lynch, E M
McNamara, B
Shorten, G D
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Date
2012-02-03T15:16:05Z
Date Submitted
Keywords
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Subject Mesh
Adolescent
Adult
Electroencephalography/methods
Entropy
Female
Humans
Male
Middle Aged
Polysomnography/*methods
Prospective Studies
*Signal Processing, Computer-Assisted
*Sleep Stages
Young Adult
Adult
Electroencephalography/methods
Entropy
Female
Humans
Male
Middle Aged
Polysomnography/*methods
Prospective Studies
*Signal Processing, Computer-Assisted
*Sleep Stages
Young Adult
Planned Date
Start Date
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Principal Investigators
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Abstract
SUMMARY: In this prospective observational study we examined the potential of the spectral entropy measures 'state' and 'response' entropy (Entropy monitor), as measures of sleep depth in 12 healthy adult subjects. Both median state and response entropy values varied significantly with sleep stage (p = 0.017 and p = 0.014 respectively; ANOVA). Median state or response entropy did not decrease significantly during the transition from awake to stage I sleep (p > 0.017). State entropy values decreased significantly between sleep stages I and II (p < 0.001). Both state and response entropy values were significantly less (40 and 45 arbitrary units respectively) in stage III (slow wave sleep) vs stage II sleep (p = 0.008). We conclude that state and response entropy values, when expressed as a function of time, may be a useful means of quantifying aspects of sleep.
Language
eng
ISSN
1365-2044 (Electronic)
0003-2409 (Linking)
0003-2409 (Linking)
eISSN
ISBN
DOI
10.1111/j.1365-2044.2008.05675.x
PMID
19032298