2022 Fiscal Year Final Research Report
A characteristic and a mechanism of the alterations in emotional responses induced by food aversion due to olfaction perception of the human
Project/Area Number |
20K19733
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 59040:Nutrition science and health science-related
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Research Institution | Hiroshima Jogakuin University |
Principal Investigator |
Kojiro Ishinaga 広島女学院大学, 人間生活学部, 教授 (80574459)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | におい / 食物臭嫌悪 / 嗅覚 / 情動 / 食嗜好 / 臭気指数相当値 / ビジュアルアナログスケール |
Outline of Final Research Achievements |
The purpose of this study was that determine the extent to which humans perceive mixed odors of food. Additionally, we investigated the correlation between food odor perception and the emotions that induce food aversion. As a result, even when two types of food odors were mixed, each odor could be easily identified. This suggests that the ability to perceive food odors is deeply related not only to the strength and quality of the odors, but also to the emotions they induce, particularly unpleasantness. As an olfactory mechanism, ability to recognize unpleasant smell (critical information) was given priority to over ability to sense a taste. When the ability with unpleasantnesswas was strong , it was suggested that we could not eat a diet.
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Free Research Field |
臨床栄養学
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Academic Significance and Societal Importance of the Research Achievements |
我々は以前よりがん化学療法(抗がん剤)と食物臭嫌悪の関連を研究している。がん化学療法では悪心や食欲不振、口内炎などの有害事象が頻繁に起こる。その有害事象の一つに嗅覚過敏による嘔気、におい誘導による予期性悪心がある。 本研究の基礎データや考察から、将来的には病気の治療や体調不良で食事摂取量が減少している場合には、管理栄養士・栄養士は最初に栄養剤の追加を検討しがちだが、まずは対象者へのインタビューで嗅覚過敏や特定のにおいの嫌悪が起こっていないかを確認し、その症状がある場合には嫌悪臭を避けた、もしくは食物嫌悪を起こしにくい献立の立案によって食事摂取量を回復させる手法が確立できればよいと願っている。
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