A functional MRI study on the regulation of stress mediated brain activity by biting.
| Project/Area Number |
22592063
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional basic dentistry
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| Research Institution | Gifu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
定藤 規弘 生理学研究所, 大脳皮質機能研究系, 教授 (00273003)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 口腔生理学 / 脳活動 / 運動野 / 下頭頂小葉 / 扁桃体 / fMRI / 噛み締め / ストレス / 脳 / 神経 / 非侵襲的画像計測 |
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| Research Abstract |
The aim of this study is to identify if the emotional brain activity is modified by biting. We analyzed activation of several brain regions ob human subjects by using functional magnetic resonance imaging (fMRI) under different biting pressure. The biting pressure was monitored using a flat pressure sensor attached to clear retainer and was visually feed-backed to the subjects. Biting activated the occipito-temporal visual areas, the parietal visual association areas, the primary and secondary somatosensory areas, and the primary motor area. We found that the neuronal activity of amygdala was suppressed by biting.
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Report
(4 results)
Research Products
(4 results)
