Naturalness and reality estimated by brain activity reflecting perceptual and cognitive state
Project/Area Number |
19300071
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Sensitivity informatics/Soft computing
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Research Institution | Toyohashi University of Technology |
Principal Investigator |
NAKAUCHI Shigeki Toyohashi University of Technology, 工学部, 教授 (00252320)
|
Co-Investigator(Kenkyū-buntansha) |
KITAZAKI Michiteru 豊橋技術科学大学, 未来ビークルリサーチセンター (90292739)
|
Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2008: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2007: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
|
Keywords | 脳波 / 顔情報処理 / P300 / N170 / ガンマ帯 / 不自然さ / 事象関連電位 / 神経デコーディング / 顔認知 / 脳活動 / 事象関連電位(ERP) / 知覚・認知 / 自然さ / 現実感 |
Research Abstract |
This study examined the relationship between the 'naturalness' of a visual stimulus and the event-related potentials measured during an oddball task.The study focused on asymmetry of the P3 amplitude during an oddball task or P3 asymmetry. Participants performed two visual oddball tasks using a pair of stimuli (A and B) : one in which A was the target stimulus and B was the standard stimulus and vice versa. The stimuli consisted of natural-unnatural pairs of visual stimuli (e.g. upright-inverted faces, possible-impossible human poses). As a result of comparing the amplitudes of the target stimuli, P3 asymmetry was found in natural-unnatural pairs ; that is, their naturalness differentiated the target P3 amplitude : larger P3 to the unnatural target than to the natural one. This study showed that P3 asymmetry reflected unnaturalness and unfamiliarity of visual stimuli.
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Report
(4 results)
Research Products
(61 results)
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[Presentation] Speech-related rhythmic activities in the motor cortex2008
Author(s)
Tamura, T., Gunji, A., Koyama, S., Kitazaki, M., Shigemasu, H., Matsuzaki, N., Takeichi, H.
Organizer
The 38th annual meeting of the Society for Neuroscience
Year and Date
20081100
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[Presentation] Speech-related rhythmic activities in the motor cortex2008
Author(s)
Tamura, T., Gunji, A., Koya Ma, S., Kitazaki, M., Shigemasu, H., Matsuza Ki, N., Takeichi, H.
Organizer
The 38th annual meeting of the Society for Neuroscience
Place of Presentation
コンベンションセンター(Washington, DC, USA)
Year and Date
2008-11-17
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