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Cooperative Particle Filtering for Tracking ERP Subcomponents from Multichannel EEG

Monajemi, Sadaf and Jarchi, Delaram and Ong, Sim-Heng and Sanei, Saeid (2017) 'Cooperative Particle Filtering for Tracking ERP Subcomponents from Multichannel EEG.' Entropy, 19 (5). p. 199. ISSN 1099-4300

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In this study, we propose a novel method to investigate P300 variability over different trials. The method incorporates spatial correlation between EEG channels to form a cooperative coupled particle filtering method that tracks the P300 subcomponents, P3a and P3b, over trials. Using state space systems, the amplitude, latency, and width of each subcomponent are modeled as the main underlying parameters. With four electrodes, two coupled Rao-Blackwellised particle filter pairs are used to recursively estimate the system state over trials. A number of physiological constraints are also imposed to avoid generating invalid particles in the estimation process. Motivated by the bilateral symmetry of ERPs over the brain, the channels further share their estimates with their neighbors and combine the received information to obtain a more accurate and robust solution. The proposed algorithm is capable of estimating the P300 subcomponents in single trials and outperforms its non-cooperative counterpart.

Item Type: Article
Uncontrolled Keywords: event related potential (ERP); P300; Rao-Blackwellised particle filter (RBPF); cooperative particle filtering; coupled RBPF
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
R Medicine > R Medicine (General)
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 11 Jun 2019 10:37
Last Modified: 23 Sep 2022 19:32

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