1999 Fiscal Year Final Research Report Summary
Audio-visual presentation system for magnetoencephalogram measurements
| Project/Area Number |
09551001
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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 | KYOTO UNIVERSITY |
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Principal Investigator |
OSAKA Naoyuki Kyoto Univ., Faculty of Letters, Prof., 文学研究科, 教授 (20113136)
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| Co-Investigator(Kenkyū-buntansha) |
OSAKA Mariko Osaka Univ. of Foreign Studies, Dept of Phychology, Associate Prof., 外国語学部, 助教授 (70144300)
KOYAMA Sachiko National Institute for Physiological Sciences Dept. of Integrative Physiology, Assistant., 生理学研究所, 助手 (40270483)
KAKIGI Ryusuke National Institute for Physiological Sciences Dept. of Integrative Physiology, Prof., 生理学研究所, 教授 (10145196)
ASHIDA Hiroshi Ritsumeikan Univ., College of Letters, Associate Prof., 文学部, 助教授 (20293847)
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| Project Period (FY) |
1997 – 1999
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| Keywords | brain / magnetoencephalography / Audio-visual stimulus / MEG |
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| Research Abstract |
We developed an audio-visual stimulus presentation system for measuring human magnetoencephalogram. When measuring evoked magnetic field from human brain in an electronically shielded chamber, any noisy resources originated from electronic stimulus presentation devices are strictly prohibited in order to measure noise-free high-quality magnetic field associated with psychological tasks. We developed noise-free presentation system using PC-based visual stimulus presentation system using mirror-based projection screen, in which any moving visual stimulus, i.e., motion, motion-aftereffect, apparent motion, could easily be presented on side or top wall screen in the chamber subject stayed in bed. Also audio presentation was developed in which subject could hear reading span test voice via noise-free speaker system. In addition, we developed the modified version of these for event-related brain potential experiments, in which similar electrically induced noise should be avoided but with weaker criterion. In event-related potential study, we made infra-red-based fiber communication line to detect subject's judgment in stead of electric button system. Software associated with these systems was also developed for working memory and visual perception experiments. The experiments done by using these system were reported in the report form and published papers are also reported.
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Research Products
(24 results)
