A MISO-ARX-Based Method for Single-Trial Evoked Potential Extraction
Joint Authors
Yu, Nannan
Zou, Dexuan
Lu, Hanbing
Chen, Ying
Wu, Lingling
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-08
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this paper, we propose a novel method for solving the single-trial evoked potential (EP) estimation problem.
In this method, the single-trial EP is considered as a complex containing many components, which may originate from different functional brain sites; these components can be distinguished according to their respective latencies and amplitudes and are extracted simultaneously by multiple-input single-output autoregressive modeling with exogenous input (MISO-ARX).
The extraction process is performed in three stages: first, we use a reference EP as a template and decompose it into a set of components, which serve as subtemplates for the remaining steps.
Then, a dictionary is constructed with these subtemplates, and EPs are preliminarily extracted by sparse coding in order to roughly estimate the latency of each component.
Finally, the single-trial measurement is parametrically modeled by MISO-ARX while characterizing spontaneous electroencephalographic activity as an autoregression model driven by white noise and with each component of the EP modeled by autoregressive-moving-average filtering of the subtemplates.
Once optimized, all components of the EP can be extracted.
Compared with ARX, our method has greater tracking capabilities of specific components of the EP complex as each component is modeled individually in MISO-ARX.
We provide exhaustive experimental results to show the effectiveness and feasibility of our method.
American Psychological Association (APA)
Yu, Nannan& Wu, Lingling& Zou, Dexuan& Chen, Ying& Lu, Hanbing. 2017. A MISO-ARX-Based Method for Single-Trial Evoked Potential Extraction. BioMed Research International،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1138557
Modern Language Association (MLA)
Yu, Nannan…[et al.]. A MISO-ARX-Based Method for Single-Trial Evoked Potential Extraction. BioMed Research International No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1138557
American Medical Association (AMA)
Yu, Nannan& Wu, Lingling& Zou, Dexuan& Chen, Ying& Lu, Hanbing. A MISO-ARX-Based Method for Single-Trial Evoked Potential Extraction. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1138557
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1138557