Abstract
Recently, a lot of researches on Brain Computer Interface (BCI) have been reported. It is expected that BCI will help patients like those with ALS to control a wheel chair or to communicate with other people just by the thoughts. It is necessary for the application of BCI to recognize the thoughts from the Electroencephalogram (EEG), and it is an approach to employ the change of amplitude on EEG. Event-Related Desynchronization (ERD) or Event-Related Synchronization (ERS) related to body's movement is one of them and well known in this research area. This paper tries to recognize two thought, "Relax" and "Image of movement", using ERD. In this paper, some experiments are done and the feedbacks are shown for higher accuracy of the recognition.
