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Visualization of Dynamic Brain Activities Based on the Single-Trial MEG and EEG Data Analysis

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Advances in Neural Networks - ISNN 2006 (ISNN 2006)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 3973))

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Abstract

Treating an averaged evoked-fields (EFs) or event-related potentials (ERPs) data is a main approach in the topics on applying Independent Component Analysis (ICA) to neurobiological signal processing. By taking the average, the signal-noise ratio (SNR) is increased, however some important information such as the strength of an evoked response and its dynamics (trial-by-trial variations) will be lost. The single-trial data analysis, on the other hand, can avoid this problem but the poor SNR is necessary to be improved.

This paper presents a robust multi-stage data analysis method for the single-trial Magnetoencephalograph (MEG) and Electroencephalograph (EEG) recorded data. In the pre-processing stage, a robust subspace method is firstly applied for reducing a high-level unique component (additive noise) in single-trial raw data. In the second stage, a parameterized t-distribution ICA method is applied for further decomposing the overlapped common components (sources). In the post-processing stage, the source localization or scalp mapping technique and post-averaging technique are applied for visualizing the dynamic brain activities. The results on single-trial MEG and EEG data analysis both illustrate the high performances not only in the visualization of the behavior and location but also in the visualization of the trial-by-trial variations of individual evoked brain response.

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References

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Authors and Affiliations

  1. Department of Electronic Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya-shi, Saitama, 369-0293, Japan

    Jianting Cao & Liangyu Zhao

  2. The Lab. for Advanced Brain Signal Processing, Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan

    Jianting Cao & Andrzej Cichocki

Authors
  1. Jianting Cao
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  2. Liangyu Zhao
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  3. Andrzej Cichocki
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Editor information

Editors and Affiliations

  1. Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China

    Jun Wang

  2. Computational Intelligence Laboratory, School of Computer Science and Engineering, University of Electronic Science and Technology of China, 610054, Chengdu, P.R. China

    Zhang Yi

  3. Department of Electrical Engineering, University of Louisville, 40292, Louisville, KY, U.S.A

    Jacek M. Zurada

  4. Laboratory for Computational Biology, Shanghai Center for Systems Biomedicine, 800 Dong Chuan Rd, 200240, Shanghai, China

    Bao-Liang Lu

  5. School of Electrical and Electronic Engineering, University of Manchester, UK

    Hujun Yin

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© 2006 Springer-Verlag Berlin Heidelberg

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Cao, J., Zhao, L., Cichocki, A. (2006). Visualization of Dynamic Brain Activities Based on the Single-Trial MEG and EEG Data Analysis. In: Wang, J., Yi, Z., Zurada, J.M., Lu, BL., Yin, H. (eds) Advances in Neural Networks - ISNN 2006. ISNN 2006. Lecture Notes in Computer Science, vol 3973. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11760191_78

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  • DOI: https://doi.org/10.1007/11760191_78

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-34482-7

  • Online ISBN: 978-3-540-34483-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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