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[1] Jiang Haiteng, Lu Qing, Han Yinglin, Yao Zhijian, et al. Single-trial evoked brain responsesmodeled by multichannel matching pursuit [J]. Journal of Southeast University (English Edition), 2010, 26 (4): 546-549. [doi:10.3969/j.issn.1003-7985.2010.04.009]
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Single-trial evoked brain responsesmodeled by multichannel matching pursuit()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
26
Issue:
2010 4
Page:
546-549
Research Field:
Biological Science and Medical Engineering
Publishing date:
2010-12-30

Info

Title:
Single-trial evoked brain responsesmodeled by multichannel matching pursuit
Author(s):
Jiang Haiteng1 Lu Qing1 Han Yinglin2 Yao Zhijian2 Liu Gang1
1Research Center for Learning Science, Southeast University, Nanjing 210096, China
2Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
Keywords:
magnetoencephalography(MEG) single trial multichannel matching pursuit source reconstruction
PACS:
Q64;TP301.4
DOI:
10.3969/j.issn.1003-7985.2010.04.009
Abstract:
A multichannel matching pursuit(MMP)algorithm is proposed to decompose the one-dimensional multichannel non-stationary magnetoencephalography(MEG)signal at a single-trial level. The single-channel matching pursuit(MP)linearly decomposes the signal into a set of Gabor atoms, which are adaptively chosen from an overcomplete dictionary with good time-frequency characters. The MMP is the extension of the MP, which represents multichannel signals using linear combination of Gabor atoms with the same occurrence, frequency, phase, and time width, but varying amplitude in all channels. The results demonstrate that the MMP can optimally reconstruct the original signal and automatically remove artifact noises. Moreover, the coherence between the 3D source reconstruction and the prior knowledge of psychology further suggests that the MMP is effective in MEG single-trial processing.

References:

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Memo

Memo:
Biographies: Jiang Haiteng(1985—), male, graduate; Lu Qing(corresponding author ), female, doctor, associate professor, luq@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.30900356, 81071135), the National High Technology Research and Development Program of China(863 Program)(No.2008AA02Z410).
Citation: Jiang Haiteng, Lu Qing, Han Yinglin, et al.Single-trial evoked brain responses modeled by multichannel matching pursuit[J].Journal of Southeast University(English Edition), 2010, 26(4):546-549.
Last Update: 2010-12-20