2009 Fiscal Year Final Research Report
Chewing effect for the stress-related memory defect : An fMRI study
Project/Area Number |
20791650
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Social dentistry
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Research Institution | Kanagawa Dental College |
Principal Investigator |
TACHIBANA Atsumichi Kanagawa Dental College, 生理学分野, 非常勤講師 (80409995)
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Project Period (FY) |
2008 – 2009
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Keywords | fMRI / ストレス / 高次脳機能 / 咀嚼咬合 / 前頭前野 / 歯科心身医学 |
Research Abstract |
Combining the computerized Kana Pick-out Test as a stressor and fMRI was used for the analysis. This test was examined before and after gum chewing. The result showed the chewing effect for working memory in the brain activity included in the prefrontal cortex. In addition, we investigated the change in brain regional activity for the stress during gum chewing when edentulous subjects switched from mandibular complete dentures (CD) to implant-supported removable overdentures (IOD). This result showed that, within the prefrontal cortex, the neural activity of the frontal pole significantly decreased during gum chewing with IOD when compared to that with CD.
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[Book] Novel trends in brain science(Interactions between chewing and brain activity in human)2008
Author(s)
Onozuka M, Hirano Y, Tachibana A, Kim W, Ono Y, Sasaguri K, Kubo K, Niwa M, Kanematsu K, Watanabe, K.
Total Pages
99-113
Publisher
Springer
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