2007 Fiscal Year Final Research Report Summary
Activation of Fundamental Brain and Kansei Effect caused by 4K ultra definition image
| Project/Area Number |
17300077
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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 | 一般 |
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| Research Field |
Sensitivity informatics/Soft computing
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| Research Institution | National Institute of Multimedia Education |
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Principal Investigator |
NISHINA Emi National Institute of Multimedia Education, R&D Department, Associate Professor (20260010)
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| Co-Investigator(Kenkyū-buntansha) |
MAEKAWA Tadao Yokkaichi University, Faculty of Environmental Information, Professor (80387927)
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| Project Period (FY) |
2005 – 2007
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| Keywords | 4K Image / Hivision / Activity of fundamental brain / α-EEG / High frequency above the audible range / 生理活性物質 |
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| Research Abstract |
We examined the physiological effect of high-definition 4K image (4000×2000pixel), that is selected as the standard format for digital cinema, to human brain using originally developed physiological evaluation method. We designed and developed a audio-visual material for physiological experiments focusing on the works of Made Wianta, an artist of Bali, Indonesia, renowned for his ethno-sensitivity and techniques. As a result, we found that the power spectra of the alpha 2 frequency range of the spontaneous electroencephalogram (α2-EEG), which serves as the index of stress-free status and highly correlates with deep brain activity, increased with statistical significance when the subjects looked at 4K image, compared with 2K image. α2-EEG was increased by full-range sound with high frequency components above 22kHz, and decreased by sound without high frequencies, too. We observed same positive tendency of bioactive substances such as nor-adrenaline and cortisol. These findings suggest that information density of 4K format has a possibility to improve deep brain activity.
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