@inproceedings{35f598af7c644c9e866b3a476fc397c4,
title = "Development of a system for capturing sleep predictor signals during wakefulness",
abstract = "The feature of sleep pattern is determined by the rhythm of body temperature. In this study, a method was conceived for capturing changes in the peripheral circulatory system during the process of lowering of core body temperature via finger plethysmogram. Recorded signals were then analyzed by chaos analysis. By analyzing the variations in the time series of the gradients of the largest Lyapunov exponent and the power value (the square of the finger plethysmogram amplitude), and by observing the conditions of the subject, the phenomenon that predicts the subject's transition to Stage 1 sleep during wakefulness was detected.",
keywords = "Body temperature, Chaos analysis, Finger plethysmogram, Peripheral circulatory system, Sleep predictor signals",
author = "E. Fujita and Y. Ogura and N. Ochiai and K. Murata and Tsutomu Kamei and Y. Ueno and S. Kaneko",
year = "2009",
doi = "10.1007/978-3-642-03882-2_479",
language = "English",
isbn = "9783642038815",
series = "IFMBE Proceedings",
publisher = "Springer Verlag",
number = "4",
pages = "1804--1807",
booktitle = "World Congress on Medical Physics and Biomedical Engineering",
edition = "4",
note = "World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics ; Conference date: 07-09-2009 Through 12-09-2009",
}