Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
505895 | Computers in Biology and Medicine | 2006 | 9 Pages |
Abstract
We present a new approach to modelling non-stationarity in EEG time series by a generalized state space approach. A given time series can be decomposed into a set of noise-driven processes, each corresponding to a different frequency band. Non-stationarity is modelled by allowing the variances of the driving noises to change with time, depending on the state prediction error within the state space model. The method is illustrated by an application to EEG data recorded during the onset of anaesthesia.
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Kin Foon Kevin Wong, Andreas Galka, Okito Yamashita, Tohru Ozaki,