DocumentCode
1949989
Title
Phase synchronization and directional coupling between brain and heart during sleep
Author
Abdullah, Hanim ; Maddage, N. ; Cvetkovic, Dean
Author_Institution
Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia
fYear
2012
fDate
17-19 Dec. 2012
Firstpage
659
Lastpage
663
Abstract
Phase synchronization is a measure of interaction between phases of two chaotic systems although their amplitudes are uncorrelated. Here, we investigate the synchronization between heart signals and EEG frequency bands (delta1, delta2, theta, alpha1, alpha2, sigma, beta and gamma) during sleep Stage 1-4 and REM in the healthy and sleep apnoea by means of Synchronization Index (SI) and Directionality Index (d). The results showed that in both groups and all sleep stages, there was a strong unidirectional coupling from brain to heart.
Keywords
chaos; electroencephalography; sleep; synchronisation; Directionality Index; EEG frequency bands; Synchronization Index; brain; chaotic systems; directional coupling; heart signals; phase synchronization; sleep; ECG; EEG; directionality; phase synchronization; sleep;
fLanguage
English
Publisher
ieee
Conference_Titel
Biomedical Engineering and Sciences (IECBES), 2012 IEEE EMBS Conference on
Conference_Location
Langkawi
Print_ISBN
978-1-4673-1664-4
Type
conf
DOI
10.1109/IECBES.2012.6498075
Filename
6498075
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