Brain Computer Interface by Use of EEGs on Recalling Playing Cards

Abstract

The authors measured electroencephalograms (EEGs) from subjects on recognizing and on recalling 13 types of playing card images (from Ace to King) presented on a CRT. Each presented image card was the club. The canonical discriminant analysis was applied to these single trial EEGs. Four channels of EEGs at the right frontal and temporal were used in the discrimination. The data vectors are in eighty four dimensions. The number of external criteria is thirteen, from Ace to King. Results of the canonical discriminant analysis were more than 90 % for all subjects. We could control a micro robot by thirteen commands using EEGs when subjects recalling of playing card.