2012 Fiscal Year Final Research Report
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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| Project Period (FY) |
2010 – 2012
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| Keywords | 口腔生理学 |
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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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