Brain control of robotic arm using affective steady-state visual evoked potentials

Hovagim Bakardjian, Toshihisa Tanaka, Andrzej Cichocki

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

9 Citations (Scopus)

Abstract

The recent emergence of successfully performing Brain- Computer Interfaces (BCI) has given new hope to the disabled and elderly populations for improvements in quality of life. However, most non-invasive BCI systems which allow direct brain-to-machine control still have rather limited capabilities. Visual-flicker-based SSVEPBCI systems have received increased attention due to their potential capability to provide a large number of commands with high reliability. Yet, researchers have had limited success improving further the single-trial extraction of the weak SSVEP oscillations buried in strong brain 'noise'. In a previous study we have shown that the optimization of the stimulus properties is essential for the enhanced performance of SSVEP-based BCI designs. This paper presents substantial enhancements in the brain response and the processing algorithms necessary for reliable multi-command SSVEP-BCI systems. The visual perception of flickering emotional video, instead of neutral checkerboards, enhanced substantially the measurable SSVEP responses of the brain. Furthermore, a single-trial phase-locking gradient measure was found to be more reliable and resulted in decreased variability when compared to wavelet energy changes. When BCI users operated a robotic arm with this Hybrid BCI platform, the speed, reliability, and information transfer rates were substantially improved when utilizing the proposed affective flicker paradigm.

Original languageEnglish
Title of host publicationProceedings of the 5th IASTED International Conference on Human-Computer Interaction, HCI 2010
Pages264-270
Number of pages7
Publication statusPublished - 2010
Externally publishedYes
Event5th IASTED International Conference on Human-Computer Interaction, HCI 2010 - Maui, HI, United States
Duration: 23 Aug 201025 Aug 2010

Publication series

NameProceedings of the 5th IASTED International Conference on Human-Computer Interaction, HCI 2010

Conference

Conference5th IASTED International Conference on Human-Computer Interaction, HCI 2010
Country/TerritoryUnited States
CityMaui, HI
Period23/08/1025/08/10

Keywords

  • Affective
  • BCI
  • BMI
  • Emotions
  • Extraction
  • SSVEP

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