Psychological and neurophysiological investigation of the effects of light wavelengths on human alertness during daytime

• Project/Area Number: 23860073
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Architectural environment/equipment
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: OKAMOTO Yosuke 独立行政法人産業技術総合研究所, 健康工学研究部門, 産総研特別研究員 (80612184)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 光環境 / 波長 / 覚醒度 / 認知 / 大脳活動 / 認知作業

Research Abstract

The effects of light wavelengths on cognitive processes during daytime were investigated. EEG and MEG responses during cognitive tasks were measured under exposures to lights with different wavelengths. The results showed that short-wavelength (blue) ligh

Research Products

• [Journal Article] Effects of daytime exposures of monochromatic lights on EEG during cognitive task (2012)
  • Author(s): Yosuke Okamoto, Seiji Nakagawa
  • Journal Title: Proceedings of the 27th Symposium on Biological and Physiological Engineering Volume: CD-ROM Pages: 217-218
• [Journal Article] 振幅変調点滅光のエンベロープ知覚メカニズム ～精神物理計測と脳磁界計測による検討～ (2012)
  • Author(s): 岡本洋輔，中川誠司
  • Journal Title: 日本生体磁気学会誌特別号 Volume: 25 Pages: 30-31
• [Journal Article] 瞳孔径測定による眼疲労評価方法に関する検討 ～ 光環境の明るさの違いが眼疲労に与える影響 ～ (2012)
  • Author(s): 岡本洋輔，小岩 弘子，野口 公喜
  • Journal Title: 第45回照明学会全国大会講演論文集 Volume: CD-ROM
• [Journal Article] Temporal dynamics of cortical activity for blue light exposure in the early morning (2011)
  • Author(s): Yosuke Okamoto, Mark Rea, Mariana Figueiro
  • Journal Title: 第44回照明学会全国大会講演論文集 Volume: CD-ROM Pages: 154-154
• [Journal Article] Effects of adaptation on the temporal envelope of amplitude-modulated flickering light (2011)
  • Author(s): Yosuke Okamoto, Seiji Nakagawa
  • Journal Title: Vision Research Volume: 487 Issue: 12 Pages: 1372-1375
  • DOI: 10.1016/j.visres.2011.04.014
  • Peer Reviewed
• [Presentation] Effects of daytime exposures of monochromatic lights on EEG during cognitive task (2012)
  • Author(s): Yosuke Okamoto, Seiji Nakagawa
  • Organizer: 第27回 生体・生理工学シンポジウム
  • Place of Presentation: 北海道大学 (北海道)
  • Year and Date: 2012-09-19
• [Presentation] EEG activity during blue and red light exposures in the early morning (2012)
  • Author(s): Yosuke Okamoto, Mark Rea, Mariana Figueiro
  • Organizer: 18th international conference on biomagnetism
  • Place of Presentation: Paris (France)
  • Year and Date: 2012-08-28
• [Presentation] Temporal dynamics of cortical activity for blue light exposure in the early morning (2011)
  • Author(s): Yosuke Okamoto, Mark Rea, Mariana Figueiro
  • Organizer: 第44回照明学会全国大会
  • Place of Presentation: 愛媛大学(愛媛県)
  • Year and Date: 2011-09-16
• [Presentation] Temporal dynamics of cortical activity for blue light exposure in the early morning (2011)
  • Author(s): Yosuke Okamoto, Mark Rea, Mariana Figueiro
  • Organizer: 第44回照明学会全国大会
  • Place of Presentation: 愛媛大学(愛媛)
  • Year and Date: 2011-09-16
• [Presentation] 脳磁界計測と心理学的計測による振幅変調点滅光のエンベローフ知覚メカニスムの検討 (2011)
  • Author(s): 岡本洋輔, 中川誠司
  • Organizer: 第26回日本生体磁気学会大会
  • Place of Presentation: 九州大学(福岡)
  • Year and Date: 2011-06-03
• [Presentation] 振幅変調点滅光のエンベロープ知覚メカニズム ～精神物理計測と脳磁界計測による検討～
  • Author(s): 岡本洋輔，中川誠司
  • Organizer: 第27回日本生体磁気学会大会
  • Place of Presentation: 東京電機大学（東京）
• [Presentation] EEG activity during blue and red light exposures in the early morning
  • Author(s): Yosuke Okamoto, Mark Rea, Mariana Figueiro
  • Organizer: 18th international conference on biomagnetism
  • Place of Presentation: Paris (France)
• [Presentation] 瞳孔径測定による眼疲労評価方法に関する検討 ～ 光環境の明るさの違いが眼疲労に与える影響 ～
  • Author(s): 岡本洋輔，小岩 弘子，野口 公喜
  • Organizer: 第45回照明学会全国大会
  • Place of Presentation: 山口大学 （山口）
• [Presentation] Effects of daytime exposures of monochromatic lights on EEG during cognitive task
  • Author(s): 岡本洋輔，中川誠司
  • Organizer: 第27回 生体・生理工学シンポジウム
  • Place of Presentation: 北海道大学 （北海道）
• [Remarks]
  • URL: http://staff.aist.go.jp/yos-okamoto/
• [Remarks]
  • URL: http://staff.aist.go.jp/vos-okamoto/