Wearable in-the-ear EEG system for SSVEP-based brain-computer interface
- 주제(기타) Engineering, Electrical & Electronic
- 설명문(일반) [Ahn, J. W.; Ku, Y.; Kim, D. Y.; Sohn, J.] Seoul Natl Univ, Interdisciplinary Program Bioengn, Seoul, South Korea; [Kim, J. -H.] Ewha Womans Univ, Dept Elect & Elect Engn, Seoul, South Korea; [Kim, H. C.] Seoul Natl Univ, Coll Med, Med Res Ctr, Dept Biomed Engn, Seoul, South Korea; [Kim, H. C.] Seoul Natl Univ, Coll Med, Med Res Ctr, Inst Med & Biol Engn, Seoul, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 INST ENGINEERING TECHNOLOGY-IET
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000151911
- 본문언어 영어
- Published As http://dx.doi.org/10.1049/el.2017.3970
초록/요약
Steady-state visual evoked potential (SSVEP) has been widely used in electroencephalogram (EEG)-based brain-computer interfaces (BCIs) due to its high information transfer rate (ITR) and short training time. Current methods usually measure SSVEP from electrodes on the scalp, which is an uncomfortable and time-consuming method. Furthermore, most research relies on expensive and non-portable EEG devices. To utilise BCIs in daily life, however, these are critical issues to address. Hence, a wearable EEG device for in-ear SSVEP detection is proposed. The system is 40 x 21 x 10.5 mm(3) and weighs 14.2 g, thus being light weight and wearable. Moreover, the system has a noise level of 0.11 mu V-rms, which is comparable with commercial EEG systems. Six subjects participated in an offline BCI experiment that consisted of six visual targets using the developed in-the-ear EEG system. The results showed a highest ITR of 11.03 +/- 4.18 bits/min with an accuracy of 79.9 +/- 13.1%, and the experiments demonstrated that the system can be utilised for unobtrusive monitoring of SSVEP in BCI applications.
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