Insomnia types and sleep microstructure dynamics
- 1 July 2013
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
- Vol. 2013 (1094687X), 6167-6170
- https://doi.org/10.1109/embc.2013.6610961
Abstract
This work aims to investigate sleep microstructure as expressed by Cyclic Alternating Pattern (CAP), and its possible alterations in pathological sleep. Three groups, of 10 subjects each, are considered: a) normal sleep, b) psychophysiological insomnia, and c) sleep misperception. One night sleep PSG and sleep macro- micro structure annotations were available per subject. The statistical properties and the dynamics of CAP events are in focus. Multiscale and non-linear methods are presented for the analysis of the microstructure event time series, applied for each type of CAP events, and their combination. The results suggest that a) both types of insomnia present CAP differences from normal sleep related to hyperarousal, b) sleep misperception presents more extensive differences from normal, potentially reflecting multiple sleep mechanisms, c) there are differences between the two types of insomnia as regard to the intertwining of events of different subtypes. The analysis constitutes a contribution towards new markers for the quantitative characterization of insomnia, and its subtypes.Keywords
This publication has 9 references indexed in Scilit:
- Cyclic Alternating Patterns in Normal Sleep and Insomnia: Structure and Content DifferencesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2012
- Dynamic Decomposition of Poincaré Plots for Multivariate Analysis and Visualization of Simultaneously Recorded Physiological Time SeriesComputational Methods in Science and Technology, 2010
- Paradoxical insomnia: The role of CAP and arousals in sleep misperceptionSleep Medicine, 2009
- Does insomnia predict sick leave?Journal of Psychosomatic Research, 2009
- Effects of Zolpidem on Cyclic Alternating Pattern, an Objective Marker of Sleep Instability, in Japanese Patients with Psychophysiological Insomnia: A Randomized Crossover Comparative Study with PlaceboPharmacopsychiatry, 2008
- Application of the cross wavelet transform and wavelet coherence to geophysical time seriesNonlinear Processes in Geophysics, 2004
- CAP variables and arousals as sleep electroencephalogram markers for primary insomniaClinical Neurophysiology, 2003
- Atlas, rules, and recording techniques for the scoring of cyclic alternating pattern (CAP) in human sleepSleep Medicine, 2002
- Physiological Activation in Patients With Sleep State MisperceptionPsychosomatic Medicine, 1997