Research on steady-state visual evoked potentials in 3D displays

Yu Yi Chien, Chia Ying Lee, Fang Cheng Lin, Yi-Pai Huang, Li-Wei Ko, Han Ping D. Shieh

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

3 Scopus citations

Abstract

Brain-computer interfaces (BCIs) are intuitive systems for users to communicate with outer electronic devices. Steady state visual evoked potential (SSVEP) is one of the common inputs for BCI systems due to its easy detection and high information transfer rates. An advanced interactive platform integrated with liquid crystal displays is leading a trend to provide an alternative option not only for the handicapped but also for the public to make our lives more convenient. Many SSVEP-based BCI systems have been studied in a 2D environment; however there is only little literature about SSVEP-based BCI systems using 3D stimuli. 3D displays have potentials in SSVEP-based BCI systems because they can offer vivid images, good quality in presentation, various stimuli and more entertainment. The purpose of this study was to investigate the effect of two important 3D factors (disparity and crosstalk) on SSVEPs. Twelve participants participated in the experiment with a patterned retarder 3D display. The results show that there is a significant difference (p-value<0.05) between large and small disparity angle, and the signal-to-noise ratios (SNRs) of small disparity angles is higher than those of large disparity angles. The 3D stimuli with smaller disparity and lower crosstalk are more suitable for applications based on the results of 3D perception and SSVEP responses (SNR). Furthermore, we can infer the 3D perception of users by SSVEP responses, and modify the proper disparity of 3D images automatically in the future.

Original languageEnglish
Title of host publicationThree-Dimensional Imaging, Visualization, and Display 2015
EditorsBahram Javidi, Jung-Young Son
PublisherSPIE
ISBN (Electronic)9781628416114
DOIs
StatePublished - 1 Jan 2015
EventThree-Dimensional Imaging, Visualization, and Display 2015 - Baltimore, United States
Duration: 20 Apr 201521 Apr 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9495
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceThree-Dimensional Imaging, Visualization, and Display 2015
CountryUnited States
CityBaltimore
Period20/04/1521/04/15

Keywords

  • Brain-computer interface (BCI)
  • steady-state visual evoked potential (SSVEP)
  • three-dimension (3D) display
  • visual stimulation

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