2016 Fiscal Year Final Research Report
Non-invasive brain-computer interface using steady-state visual potentials evoked by invisible high-frequency flicker
| Project/Area Number |
25540081
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Human interface and interaction
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Katsuki 京都大学, 霊長類研究所, 教授 (70243110)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | BCI / SSVEP / 脳波 / フリッカー |
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| 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.
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| Free Research Field |
認知神経科学
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