Design a brain computer interface gaming system using steady-state visual evoked potential

Po Lei Lee, Shu Hao-Teng, Chang Hsiang-Chih

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The brain computer interface (BCI) is an emerging technology for paralyzed people to communicate with external environments through their minds. However, current EEG equipment utilizes metal electrodes, such as gold cup, AgCl, etc., with electrolytes to attach on human skin. These wet-type electrodes are not convenient for use. It usually requires a lousy preparation process and the refill of electrolyte after using one or two hours. In this study, the dry-electrode IMEC headset V1 system was adopted to implement a brain computer interface. Two visual stimuli, flickering at 15 and 17Hz were presented on a LCD screen. Subject's 15 Hz or 17 Hz steady-state visual evoked potential (SSVEP) was induced to control a virtual claw machine. Users gazed at the 15 Hz stimulus to control the movement of the claw and the 17 Hz stimulus was used to clamp objects. During the operation, users gazed at one intended targets to activate its corresponding function. The proposed system has been tested in three volunteers, and the mean accuracy and mean information transfer rate (ITR) were 96% and 18.23 bits/min, respectively. According to our experience, the operation accuracy of the BCI system is related to subject's attention level. Higher concentration level will result in better accuracy. The proposed BCI system can also be used for paralyzed patients to control home facilities for self-caring purpose in the future.

Original languageEnglish
Title of host publicationDigest of Technical Papers - IEEE International Conference on Consumer Electronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5-6
Number of pages2
ISBN (Electronic)9781479938308
DOIs
StatePublished - 18 Sep 2014
Event1st IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2014 - Taipei, Taiwan
Duration: 26 May 201428 May 2014

Publication series

NameDigest of Technical Papers - IEEE International Conference on Consumer Electronics
ISSN (Print)0747-668X

Conference

Conference1st IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2014
Country/TerritoryTaiwan
CityTaipei
Period26/05/1428/05/14

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