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2023 Fiscal Year Final Research Report

Analysis of oral tactile sensation using conditioned viscosity aversion test in rats

Research Project

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Project/Area Number 22K17006
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57010:Oral biological science-related
Research InstitutionKyushu Dental College

Principal Investigator

Nakatomi Chihiro  九州歯科大学, 歯学部, 助教 (80878273)

Project Period (FY) 2022-04-01 – 2024-03-31
Keywords食品テクスチャー / 触圧覚
Outline of Final Research Achievements

The purpose of this study is to analyze texture perception in rats. We have previously clarified viscosity perception in rats using the conditioned viscosity aversion test. To clarify the mechanism of texture perception, it is necessary to analyze not only viscosity perception, but also other texture perceptions and their interactions. First, we established a method to evaluate texture perception in rats, and then analyzed the change of texture perception with viscosity. Since there are many types of food textures, further study of different texture perceptions and their interactions would lead to the understanding of the mechanism of texture perception.

Free Research Field

口腔生理学

Academic Significance and Societal Importance of the Research Achievements

口腔内の触圧感覚によって食品テクスチャーを正確に知覚することは、食品に応じて咀嚼力を調節したり、安全に嚥下できるタイミングを判断するために重要な感覚である。食品テクスチャー感覚に関与する受容器や神経回路を明らかにするためには、動物実験系での解析が必須である。本研究で粘性や粒子性感覚を評価できる実験系を確立したこと、またその相互作用があることを動物実験系で明らかにしたことで、今後より詳細な解析を行うことが可能になった。今後本研究を発展させテクスチャー認知メカニズムの詳細を明らかにすることで、摂食嚥下機能改善に有用な知見を提供できる。

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Published: 2025-01-30  

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