An online SSVEP-based chatting system

Author

Wang, Xin ; Cao, Teng ; Wang, Boyu ; Wan, Feng ; Mak, Peng Un ; Mak, Pui In ; Vai, Mang I. ; Li, Chaozheng

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Macau, Macau, China

fYear

2011

fDate

8-10 June 2011

Firstpage

536

Lastpage

539

Abstract

This paper presents a steady-state visual evoked potential (SSVEP) based online brain-computer interface (BCI) chatting system. In this application, it helps disable subjects to chat by means of their brain signal activities. Stimuli illuminated at different frequencies are displayed on liquid crystal display (LCD) screen. The BCI system implements a chatting interface programmed in Java, and it provides a convenient and high efficient communication platform for paralyzed patients. A novel idle state detection is introduced in this proposed system, and a high transfer rate of 63.54 bits/min and 92% idle state detection accuracy are achieved.

Keywords

Java; brain-computer interfaces; electronic messaging; liquid crystal displays; visual evoked potentials; Java; brain signal; idle state detection; liquid crystal display screen; online SSVEP-based chatting system; online brain-computer interface; Accuracy; Brain computer interfaces; Correlation; Electroencephalography; Encoding; Monitoring; Visualization; brain computer interface (BCI); canonical correlation analysis (CCA); speller; steady state visual evoked potential (SSVEP);

fLanguage

English

Publisher

ieee

Conference_Titel

System Science and Engineering (ICSSE), 2011 International Conference on

Conference_Location

Macao

Print_ISBN

978-1-61284-351-3

Electronic_ISBN

978-1-61284-472-5

Type

conf

DOI

10.1109/ICSSE.2011.5961961

Filename

5961961