抄録
This paper describes a basic study on electroencephalogram (EEG)-based control. Tanaka has proposed the discrimination methods for detecting left/right direction thinking using brainwaves, in which the purpose is to improve recognition rates. Then the effects of the measurement position on the human head and the relationship with brain sites are not investigated. This paper employs Linear Discriminant Analysis (LDA) for this discrimination of human thinking. LDA enables us to investigate input / output relationship such as efficacy of each measurement position and relationship with brain sites. The authors focus on alpha and beta waves which are specific frequency components included in brainwaves, and we apply LDA to extracted alpha and beta waves. Experimental result for the data of brainwaves of 4 subjects analyzed by this method shows that average discrimination rate is approximately 70%. This paper also shows the investigation for the effective measurement position and the relationship between the thinking and the brain sites.
