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Non-invasive brain-computer interface using steady-state visual potentials evoked by invisible high-frequency flicker

Research Project

Project/Area Number 25540081
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Human interface and interaction
Research InstitutionKyoto University

Principal Investigator

Takemoto Atsushi  京都大学, 霊長類研究所, 特定研究員 (20263056)

Co-Investigator(Renkei-kenkyūsha) NAKAMURA Katsuki  京都大学, 霊長類研究所, 教授 (70243110)
Project Period (FY) 2013-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsBCI / SSVEP / 脳波 / フリッカー / ヒューマンインターフェース / ヒューマンコンピュータインタラクション / ユー万コンピュータインタラクション
Outline of Final Research Achievements

The major drawback of the brain-computer interface using steady-state visual evoked potentials (SSVEP-BCI) is to make users discomfort due to their flicker perception. By using high-frequency visual stimuli, the drawback is expected to be overcome. However, adequate stimulus parameters and observational conditions are not known for such new types of SSVEP-BCI. In this study, we measured high-frequency SSVEPs under various conditions for the same observers. We found several considerable properties including the predominance of the lower visual field at high frequency, the dependencies of SSVEPs on spatial characteristics of visual pattern (spatial frequencies and sizes), and the significance of the spatial pattern of SSVEPs over multi electrodes.

Report

(5 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • 2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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