A Nonlinear Approach to Brain Function: Deterministic Chaos and Sleep EEG
| Autor: | J. Röschke, Aldenhoff Jb |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Adult
Male Correlation dimension Rapid eye movement sleep Sleep REM Electroencephalography Lorazepam Hippocampus Models Biological Physiology (medical) mental disorders medicine Animals Humans Slow-wave sleep Auditory Cortex Sleep Stages medicine.diagnostic_test business.industry Brain Eye movement Pattern recognition Placebo Effect Sleep in non-human animals Electrodes Implanted Cats Neurology (clinical) Artificial intelligence Sleep business Psychology Neuroscience Curse of dimensionality |
| Zdroj: | Sleep. 15:95-101 |
| ISSN: | 1550-9109 0161-8105 |
| DOI: | 10.1093/sleep/15.2.95 |
| Popis: | In order to perform a nonlinear dimensional analysis of the sleep electroencephalogram (EEG), we applied an algorithm proposed by Grassberger and Procaccia to calculate the correlation dimension D2 of different sleep stages under Lorazepam medication versus placebo. This correlation dimension characterizes the dynamics of the sleep EEG and it estimates the degrees of freedom of the signal under study. We demonstrate that slow-wave sleep depicts a much smaller dimensionality than light or rapid eye movement (REM) sleep, and that Lorazepam does not alter the EEG's dimensionality except in stage II and REM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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