Localization of class-related mu-rhythm desynchronization in motor imagery based Brain-Computer Interface sessions

被引：4

作者：

Haufe, Stefan ^{[1
]}

Tomioka, Ryota ^{[3
]}

Dickhaus, Thorsten ^{[1
]}

Sannelli, Claudia ^{[1
]}

Blankertz, Benjamin ^{[1
]}

Nolte, Guido ^{[2
]}

Mueller, Klaus-Robert ^{[1
]}

机构：

[1] Berlin Inst Technol, Franklinstr 28-29, D-10587 Berlin, Germany

[2] Fraunhofer Inst FIRST, D-12489 Berlin, Germany

[3] Univ Tokyo, Tokyo 1138654, Japan

来源：

2010 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2010年

关键词：

RECONSTRUCTION; PERFORMANCE;

D O I：

10.1109/IEMBS.2010.5626177

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We localize the sources of class-dependent event-related desynchronisation (ERD) of the mu-rhythm related to different types of motor imagery in Brain-Computer Interfacing (BCI) sessions. Our approach is based on localization of single-trial Fourier coefficients using sparse basis field expansions (S-FLEX). The analysis reveals focal sources in the sensorimotor cortices, a finding which can be regarded as a proof for the expected neurophysiological origin of the BCI control signal. As a technical contribution, we extend S-FLEX to the multiple measurement case in a way that the activity of different frequency bins within the mu-band is coherently localized.

引用

页码：5137 / 5140

页数：4

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