A P300-based brain—computer interface

Autor: V. A. Konyshev, D. V. Karlovskii, S. V. Selishchev
Rok vydání: 2007
Předmět:
Zdroj: Biomedical Engineering. 41:29-33
ISSN: 1573-8256
0006-3398
DOI: 10.1007/s10527-007-0007-4
Popis: The goal of this work was to describe a system for real-time typing controlled by brain biopotential signals. A 6 ( 6 matrix containing Russian alphabet letters and auxiliary symbols was shown on PC screen. Electroencephalogram was taken, and the P300 component was extracted (this component appeared only upon presentation of a significant stimulus). A combination of several detection methods was used to identify the P300 component, which made it possible to increase the probability of correct identification to 91.6 (5.2%. It was shown that the developed interface could be implemented on the basis of a single active electrode in Pz (Cz) position.
Databáze: OpenAIRE
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