2013 Fiscal Year Final Research Report
The chenge of emotion and stress biomarkers which malocclusion induces.
| Project/Area Number |
22792031
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Orthodontic/Pediatric dentistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
SUGAWARA Yuki 北海道大学, 歯学研究科(研究院), 助教 (50360920)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | ｆMRI / 不正咬合 |
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| Research Abstract |
We used functional MRI to investigate brain activity in adult volunteers when they viewed mixed emotional facial expressions (happy, angry and neutral) . All examinees were subjected to complete two tasks of mandibular position (lateral shift of the mandible, centric occlusion). The results (comparison between lateral shift of the mandible and centric occlusion) were as follows.When examinees viewed happy faces, they showed deactivation in Brodmann area (BA) 3,18,11.When they viewed angry faces, there was an increased activation in BA19.These results may suggest that there are very sensitive systems in the brain for angry face by mandibular lateral shift.
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