Shifting stimuli for brain computer interface based on rapid serial visual presentation

Dong Ok Won, Han Jeong Hwang, Klaus Muller, Seong Whan Lee

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

2 Citations (Scopus)

Abstract

Most of event-related potential (ERP)-based braincomputer interface (BCI) speilers are limited practical value for paralyzed patients with severe oculomotor impairments. Recently, a gaze-independent Bel speiler was proposed that uses rapid serial visual presentation (RSVP), but it is difficult to recognize targets because of the rapid presentation of characters. We developed two ERP-based Bel speilers using RSVP with motion, and non-motion stimulation. We evaluated the effect of the two different stimulus conditions on the performance of the speiler system with eight participants. The stimulation methods that employ motion stimulation inside the foveal vision demonstrate not only gaze-independence but also higher performance than method that uses non-motion stimulation (88.9% for non-motion RSVP, 90.3% for motion RSVP). The performance of the different stimulation methods was susceptible to ERP latency and amplitudes. As a result, motion-Type RSVP stimulation condition (i.e., motion RSVP) had shorter latency and higher amplitudes than the non-motion RSVP stimulation condition. lt is expected that the proposed motion RSVP stimulation method could be used for developing a gaze independent Bel system with high performance.

Original languageEnglish
Title of host publication5th International Winter Conference on Brain-Computer Interface, BCI 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages40-41
Number of pages2
ISBN (Electronic)9781509050963
DOIs
Publication statusPublished - 2017 Feb 16
Event5th International Winter Conference on Brain-Computer Interface, BCI 2017 - Gangwon Province, Korea, Republic of
Duration: 2017 Jan 92017 Jan 11

Other

Other5th International Winter Conference on Brain-Computer Interface, BCI 2017
CountryKorea, Republic of
CityGangwon Province
Period17/1/917/1/11

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Keywords

  • Brain computer interface
  • Gaze-independent
  • Rapid serial visual presentation
  • Spelter

ASJC Scopus subject areas

  • Signal Processing
  • Human-Computer Interaction

Cite this

Won, D. O., Hwang, H. J., Muller, K., & Lee, S. W. (2017). Shifting stimuli for brain computer interface based on rapid serial visual presentation. In 5th International Winter Conference on Brain-Computer Interface, BCI 2017 (pp. 40-41). [7858152] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWW-BCI.2017.7858152