Testing for nonlinearity in time series: the method of surrogate data
Conference proceedings on Interpretation of time series from nonlinear mechanical systems
A proposed name for aperiodic brain activity: stochastic chaos
Neural Networks
Information and entropy in strange attractors
IEEE Transactions on Information Theory
Journal of Medical Systems
Comparative analysis of cell parameter groups for breast cancer detection
Computer Methods and Programs in Biomedicine
Linear and non-linear parameterization of EEG during monitoring of carotid endarterectomy
Computers in Biology and Medicine
Journal of Medical Systems
Denoising of event-related potential signal based on wavelet method
LSMS/ICSEE'10 Proceedings of the 2010 international conference on Life system modeling and simulation and intelligent computing, and 2010 international conference on Intelligent computing for sustainable energy and environment: Part III
Assessment of the EEG complexity during activations from sleep
Computer Methods and Programs in Biomedicine
Multiscale characteristics of human sleep EEG time series
ICCS'06 Proceedings of the 6th international conference on Computational Science - Volume Part I
Expert Systems with Applications: An International Journal
An ensemble system for automatic sleep stage classification using single channel EEG signal
Computers in Biology and Medicine
Automated EEG analysis of epilepsy: A review
Knowledge-Based Systems
A hybrid evolutionary approach to segmentation of non-stationary signals
Digital Signal Processing
Automatic classification of sleep stages based on the time-frequency image of EEG signals
Computer Methods and Programs in Biomedicine
Computers in Biology and Medicine
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Application of non-linear dynamics methods to the physiological sciences demonstrated that non-linear models are useful for understanding complex physiological phenomena such as abrupt transitions and chaotic behavior. Sleep stages and sustained fluctuations of autonomic functions such as temperature, blood pressure, electroencephalogram (EEG), etc., can be described as a chaotic process. The EEG signals are highly subjective and the information about the various states may appear at random in the time scale. Therefore, EEG signal parameters, extracted and analyzed using computers, are highly useful in diagnostics. The sleep data analysis is carried out using non-linear parameters: correlation dimension, fractal dimension, largest Lyapunov entropy, approximate entropy, Hurst exponent, phase space plot and recurrence plots. These non-linear parameters quantify the cortical function at different sleep stages and the results are tabulated.