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http://dx.doi.org/10.5391/JKIIS.2008.18.5.605

EEG Signals Measurement and Analysis Method for Brain-Computer Interface  

Sim, Kwee-Bo (중앙대학교 전자전기공학부)
Yeom, Hong-Gi (중앙대학교 전자전기공학부)
Lee, In-Yong ((주)삼진기술)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.18, no.5, 2008 , pp. 605-610 More about this Journal
Abstract
There are many methods for Human-Computer Interface. Recently, many researchers are studying about Brain-Signal this is because not only the disabled can use a computer by their thought without their limbs but also it is convenient to general people. But, studies about it are early stages. This paper proposes an EEG signals measurement and analysis methods for Brain-Computer Interface. Our purpose of this research is recognition of subject's intention when they imagine moving their arms. EEG signals are recorded during imaginary movement of subject's arms at electrode positions Fp1, Fp2, C3, C4. We made an analysis ERS(Event-Related Synchronization) and ERD(Event-Related Desynchronization) which are detected when people move their limbs in the ${\mu}$ waves and ${\beta}$ waves. Results of this research showed that ${\mu}$ waves are decreased and ${\beta}$ waves are increased at left brain during the imaginary movement of right hand. In contrast, ${\mu}$ waves are decreased and ${\beta}$ waves are increased at right brain during the imaginary movement of left hand.
Keywords
Event Related Synchronization(ERS); Event-Related Desynchronization,(ERD); Intention Recognition; Brain - Computer Interface(BCI); EEG Signals;
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