Strange Attractors, Chaotic Behavior and Informational Aspects of Sleep EEG Data
- 1 January 1992
- journal article
- pharmacoelectroencephalography
- Published by S. Karger AG in Neuropsychobiology
- Vol. 25 (3) , 172-176
- https://doi.org/10.1159/000118829
Abstract
In order to perform a nonlinear dimensional analysis of the sleep EEG, we applied an algorithm proposed to calculate the correlation dimension D2 of different sleep stages. D2 characterizes the dynamics of the sleep EEG, estimates the degrees of freedom, and describes the complexity of the signal under study. An attempt is made to correlate dimensionality analysis and informational aspects of the sleep EEG. Information processing by the brain during different sleep stages of healthy subjects under the influence of lorazepam and in unmedicated acute schizophrenics is estimated.Keywords
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