Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/5057
Title: EEG sleep spindle processing with independent components analysis
Authors: Αλεβίζος, Ιωάννης
Κτώνας, Περικλής Υ.
Τσέκου, Χαρά
Παπαρρηγόπουλος, Θωμάς
Σολδάτος, Κωνσταντίνος Ρ.
Contributors: Νικηφορίδης, Γεώργιος Χ.
Βεντούρας, Ερρίκος Μ.
Item type: Conference publication
Conference Item Type: Full Paper
Keywords: Sleep spindles;Sleep electroencephalogram;Άτρακτοι ύπνου;Υπνικό ηλεκτροεγκεφαλογράφημα
Subjects: Medicine
Medical technology
Ιατρική
Ιατρικά όργανα και εξοπλισμός
Issue Date: 29-Jan-2015
2006
Publisher: [χ.ό.]
Abstract: Sleep spindles are bursts of rhythmic activity characterized by progressively increasing, then gradually decreasing amplitude, present predominantly in stages 2, 3 and 4 of the sleep electroencephalogram (EEG). Topographic analyses of sleep spindle incidence suggested the existence of two distinct sleep spindle types, “slow” and “fast” spindles at approximately 12 and 14 Hz respectively. There are indications that there exist at least two functionally separated spindle generators, corresponding to each frequency spectrum class. The purpose of the present study was to process sleep spindles with Independent Component Analysis (ICA) in order to investigate the possibility of extracting, in the ICA-reconstructed EEG, spindle “components” corresponding to separate EEG activity patterns, and to investigate the sources underlying these spindle components. Using 8-channel EEG recordings of sleep spindles of a single subject, source analysis using Low-Resolution Brain Electromagnetic Tomography (LORETA) was applied on the reconstructed EEGs. Results indicate separability and stability of sources related to sleep spindle components reconstructed from separate groups of Independent Components (ICs).
Description: Proceedings of the 5th European Symposium on Biomedical Engineering
Language: English
Citation: Alevizos, I., Ktonas, P., Tsekou, H., Paparrigopoulos, T., Soldatos, C., et al. (2006). EEG sleep spindle processing with independent components analysis. In the 5th European Symposium on Biomedical Engineering. University of Patras: Patras, 2006.
Conference: European Symposium on Biomedical Engineering
Access scheme: Embargo
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/5057
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