2001 Fiscal Year Final Research Report Summary
Development of EFRP (Eye-Fixation-Related-Potential) real time analysis System
| Project/Area Number |
11551003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
実験系心理学
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| Research Institution | Kwansei Gakuin University |
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Principal Investigator |
YAGI Akihiro Kwansei Gakuin University ; School of Humanities, Department of Phychology, Professor, 文学部, 教授 (50166477)
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| Project Period (FY) |
1999 – 2001
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| Keywords | Attention / Brain Wave / Event-Related-Potential / Topograph / Real time analysis / Eye movement / Perception / Human ergonomics |
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| Research Abstract |
Eye movement record shows a step-1 ike pattern consisting of saccadic eye movements (saccades) and eye fixationswhen a subject Iooks at something. This speciaI event reIated brain potentiaIs is called the eye fixation related potential (EFRP), which can be obtained with averaging EEGs at terminations of saccades. We have completed a prototype of the new system for analyzing the EFRP. The distinctive feature of the system is that we can measure the ERP under the conditions where a subject moves eyes. This systemcanprocess EEGdata from 14cites onthe headwith a sI idingaveragemethod and can dispIay the topographical map related to the brain activities in real time. The system has been applied for a patent.
We tested the systemunder severaI conditions. EEGs from 14cites were processedwith the new system. The Iighting level was lowered. While a subject looked at a picture, his namewas called to distract his attention. We could observe the continuous variations of the map of EFRP in real time, when visual conditions varied. Some subjects showed the change in the topographical map, when their attention was distracted by the auditory stimuli. Simultaneously, we are doing research on many basic problems of perception and attention related to the system.
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