Visual stimulus background effects on SSVEP-based brain-computer interface

Xiaokang Shu, Lin Yao, Jianjun Meng, Xinjun Sheng, Xiangyang Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The flickering source is an indispensable component in steady-state visual evoked potentials based brain-computer interface, and its background severely influences the potentials evoked by the repetitive stimuli. In this paper, we designed the experiment paradigm under three different backgrounds in the context of the SSVEP controlled small car, including black screen, static scene of the environment, and dynamic scene of the environment. From the spectrogram analysis of the EEG signals at occipital cortex, we found apparent decrease in SSVEP amplitude in dynamic scene condition comparing to the reference condition black screen. And the SSVEP amplitude changes under these three conditions further resulted in identification accuracy decreasing in dynamic scene condition as compared to black screen reference condition, which was evaluated from 10×10 cross validation. Besides, in real-time control of the small car, our results indicated that training in static scene condition exhibited better performance than that in black screen.

Original languageEnglish (US)
Title of host publicationIntelligent Robotics and Applications - 6th International Conference, ICIRA 2013, Proceedings
PublisherSpringer Verlag
Pages453-462
Number of pages10
EditionPART 1
ISBN (Print)9783642408519
DOIs
StatePublished - 2013
Event6th International Conference on Intelligent Robotics and Applications, ICIRA 2013 - Busan, Korea, Republic of
Duration: Sep 25 2013Sep 28 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 1
Volume8102 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other6th International Conference on Intelligent Robotics and Applications, ICIRA 2013
Country/TerritoryKorea, Republic of
CityBusan
Period9/25/139/28/13

Keywords

  • LDA
  • Power Spectrum
  • SSVEP
  • Stimulation Background

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