Title :
Prediction of Synchrostate Transitions in EEG Signals Using Markov Chain Models
Author :
Jamal, Wasifa ; Das, S. ; Oprescu, Ioana-Anastasia ; Maharatna, Koushik
Author_Institution :
Sch. of Electron. & Comput. Sci., Univ. of Southampton, Southampton, UK
Abstract :
This letter proposes a stochastic model using the concept of Markov chains for the inter-state transitions of the millisecond order quasi-stable phase synchronized patterns or synchrostates, found in multi-channel Electroencephalogram (EEG) signals. First and second order transition probability matrices are estimated for Markov chain modelling from 100 trials of 128-channel EEG signals during two different face perception tasks. Prediction accuracies with such finite Markov chain models for synchrostate transition are also compared, under a data-partitioning based cross-validation scheme.
Keywords :
Markov processes; electroencephalography; matrix algebra; medical signal processing; probability; synchronisation; EEG signals; data-partitioning based cross-validation scheme; face perception tasks; finite Markov chain models; first order transition probability matrices; interstate transitions; millisecond order quasi-stable phase synchronized patterns; multichannel electroencephalogram signals; second order transition probability matrices; stochastic model; synchrostate transition; Brain models; Electroencephalography; Face; Hidden Markov models; Markov processes; Switches; EEG; Markov chain; prediction; synchrostate;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2014.2352251