Olfactory perception adjustment system based on spatiotemporal division presentation of inhalation

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K16107
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Human interface and interaction
• Research Institution: Kyoto Sangyo University
• Principal Investigator: NAGAYA Naohisa 京都産業大学, 情報理工学部, 准教授 (10636418)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 嗅覚知覚 / 受動的嗅覚 / 前後鼻腔経路刺激 / ニオイ源定位 / 昆虫行動解析 / Olfactory Perception / Orthonasal olfaction / Retronasal olfaction

Outline of Final Research Achievements

In this study, we conducted research to elucidate the mechanism of olfactory perception based on the question of why humans can not perceive in three dimensions despite having a pair of olfactory bulbs on the left and right of the nasal cavity and sensory receptors.
From the research results, we have found that the expiratory pathway influences the identification and recognition of odor and that the time difference between the presentation to the left and right nasal cavities influences the ability of recognition the odor component of the mixed odor. In addition, the following points were suggested for odor source localization. In the localization of the odor source under the condition without visual information, the influence of the wind direction is small, and the factors of the physical movement and the head orientation such as fanning more affect the perceived position of the odor source.

Free Research Field

情報学・人間情報学　ヒューマンインタフェースおよびインタラクション関連

Academic Significance and Societal Importance of the Research Achievements

本研究成果の意義は，混合臭の構成要素の嗅ぎ分けにおいて左右の鼻腔に対する提示時間差が影響することを明らかにした点である．これまで学術的裏付けはなされていないが，種々の異なるウィスキーを味ではなくニオイを元にブレンドするウィスキーのブレンダーはニオイを嗅ぐときに，まずは片方の鼻腔で嗅いだ後に両方の鼻腔から嗅ぐことでニオイをより豊かに知覚することができるという経験則を支持する結果であり，本研究の成果をもとにニオイを知覚しやすいグラスの開発などへの応用が期待される．