Development of Visual Evoked Potential Based Brain-Computer Interface Using Unconsious High Frequency Subliminal Flickering Light and Stochastic Resonance Phenomenon
| Project/Area Number |
22700581
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Keio University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2010: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Keywords | ブレイン・マシン・インターフェース / 頭皮脳波 / 視覚誘発電位 / 確率共鳴 / コミュニケーションエイド / リハビリテーション / 閉じ込め症候群 / コヒーレンス解析 / 生体生命情報学 / ユーザーインターフェース |
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| Research Abstract |
Brain-Computer Interface(BCI) employing scalp electroencephalogram to control communication aids was developed for persons with locked-in syndrome. The system utilized subliminal flickering visual stimuli with higher frequency than the subject's critical fusion frequency, which were unable to be recognized as flickering light, and visual evoked potential was recorded over the primary visual cortex at the occipital area. Additionally, nosily flickering visual stimuli was applied to the subject's surrounding visual field in order to induce stochastic resonance of the neurons. This proposed approach succeeded to enhance visual evoked potential two times larger than ordinarily evoked potentials without noise light. In online BCI system, eighty percent in average accuracy was also confirmed in both healthy participants and the participant with spinal cord injury.
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Report
(3 results)
Research Products
(2 results)
