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Phase synchronization with ICA for epileptic seizure onset prediction in the long term EEG
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Gupta, D., James, C. J. and Gray, W. P. (2008) Phase synchronization with ICA for epileptic seizure onset prediction in the long term EEG. In: 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP), Santa Margherita Ligure, Italy, Jul 14-16, 2008. Published in: Proceedings of the 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) pp. 176-179. doi:10.1049/cp:20080427 ISSN 0537-9989, ISBN: 978-0-86341-934-8.
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Abstract
The apparently unpredictable nature of epileptic seizures can be devastating for people with epilepsy. Current medical interventions can help 75% of patients while 25% have to live with uncontrolled seizures. This motivates the search for a seizure prediction prototype using electroencephalograms (electrical signals that capture brain activity). The concept of phase synchrony has attracted much attention recently in the context of seizure prediction but is still in need of further study. The basis of our analysis is to track changes in synchrony in brain signals at and before seizure onset. The novel concept in our analysis is the use of unmixed signals as opposed to scalp EEG signals for phase synchrony analysis. The unmixing is performed by a Blind Source Separation technique called Independent component Analysis (ICA). ICA seeks underlying independent source signals from the EEG and it allows multivariate analysis using spatial as well as temporal information inherent to EEG signals. The present study on long-term continuous EEG data sets indicates that the concept of using phase synchronization with ICA may prove useful for predicting seizures.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | R Medicine > R Medicine (General) R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Proceedings of the 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) | ||||
Publisher: | Institute of Engineering and Technology | ||||
ISSN: | 0537-9989, ISBN: 978-0-86341-934-8 | ||||
Official Date: | 2008 | ||||
Dates: |
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Page Range: | pp. 176-179 | ||||
DOI: | 10.1049/cp:20080427 | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Life Sciences Interface, University of Southampton (LSI), Institute of Sound and Vibration Research, University of Southampton (ISVR) | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 4th IET International Conference on Advances in Medical, Signal and Information Processing (MEDSIP) | ||||
Type of Event: | Conference | ||||
Location of Event: | Santa Margherita Ligure, Italy | ||||
Date(s) of Event: | Jul 14-16, 2008 |
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