Brain-display interactive system by using steady-state visual evoke potential(SSVEP) stimulation

Author

Huang, Y.P. ; Chien, Y.Y. ; Lin, F.C. ; Zao, John K. ; Wang, Yannan ; Jung, T.P.

Author_Institution

Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2014

fDate

7-11 July 2014

Firstpage

1

Lastpage

4

Abstract

Steady-state visual evoked potential (SSVEP) is one of the most effective modalities for brain-computer interaction. However, its flickering visual stimuli may cause discomfort, even induce migraine and seizure attacks among its viewers. This paper presents a novel approach to induce SSVEP with high signal-to-noise ratios (SNRs) using composite color lights flickering near or above its critical flicker fusion (CFF) thresholds. Different combinations of frequencies, relative phases and pulse widths of the stimuli waveforms were tested for their effectiveness to produce high SNR values among their SSVEP responses. Results of our experiments were analyzed and studied. The rationale behind the special design of high-frequency polychromatic stimuli and the implications towards the development of an effective brain-display interaction (BDI) system were also discussed.

Keywords

brain-computer interfaces; visual evoked potentials; brain-computer interaction; brain-display interaction system; brain-display interactive system; composite color lights flickering; critical flicker fusion thresholds; flickering visual stimuli; high-frequency polychromatic stimuli; migraine attacks; seizure attacks; steady-state visual evoke potential stimulation; Brain-computer interfaces; Color; Interactive systems; Light emitting diodes; Signal to noise ratio; Steady-state; Visualization; brain-computer interface (BCI); polychromatic; steady-state visual evoked potential (SSVEP);

fLanguage

English

Publisher

ieee

Conference_Titel

Information Optics (WIO), 2014 13th Workshop on

Conference_Location

Neuchatel

Type

conf

DOI

10.1109/WIO.2014.6933275

Filename

6933275