N400 Extraction from Fewer-Trial EEG Data Using a Supervised Signal-to-Noise Ratio Maximizer Method

Bowen Li, Zhiwen Liu, Yanfei Lin*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

N400 is a kind of event-related potential (ERP), which is related to language processing of brain and can be used for the evaluation of clinical psychological diseases. There still remain some problems in the accurate N400 waveform extraction from fewer-trial EEG data under the low signal-to-noise ratio (SNR)level. In this study, a supervised signal-to-noise ratio maximizer (SSM)method to obtain N400 waveform from multi-channel EEG data is proposed. The SSM algorithm designs a spatial filter for low-rank ERP component and extracts the N400 by 40-trial EEG datasets of each subject. The algorithm has more excellent performance in estimating the accurate N400 waveform from simulation data and real EEG data, compared to SIM and the regularized SOBI algorithms. The results show that the proposed method can effectively achieve the N400 extraction from fewer-trial EEG data.

Original languageEnglish
Title of host publicationProceedings - 2018 11th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2018
EditorsWei Li, Qingli Li, Lipo Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538676042
DOIs
Publication statusPublished - 2 Jul 2018
Event11th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2018 - Beijing, China
Duration: 13 Oct 201815 Oct 2018

Publication series

NameProceedings - 2018 11th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2018

Conference

Conference11th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2018
Country/TerritoryChina
CityBeijing
Period13/10/1815/10/18

Keywords

  • EEG
  • N400 extraction
  • fewer-trial
  • low-rank component
  • supervised signal-to-noise ratio maximizer

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