| Project/Area Number |
19K20141
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 59040:Nutrition science and health science-related
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| Research Institution | Kyoto University of Advanced Science |
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Principal Investigator |
LIANG ZILU 京都先端科学大学, 工学部, 講師 (10782807)
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | fNIRS / stress / sleep / brain imaging / personal informatics / wearable computing / ubiquitous computing / neuroimaging / fNIR |
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| Outline of Research at the Start |
This study aims to identify which brain areas are abnormally activated/suppressed during sleep in response to stress. The outcomes will give hints to the development of new interventions to stress and sleep problems.
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| Outline of Final Research Achievements |
This study explored the associations between bedtime stress and the hemodynamics in the prefrontal cortex (PFC) during the first sleep cycle. Stress biomarkers including salivary cortisol and sIgA were measured. Perceived stress level was rated on a 1-10 Likert scale right after the collection of the salivary samples. The hemodynamics of the pre-frontal cortex (PFC) was measured using a wearable functional near-infrared spectroscopy (fNIRS) device. Stress was found to correlate to the hemodynamics in the mid-DLPFC, the caudal-DLPFC, and the left RLPFC. The relationships between stress and these PFC subregions depends on the stress indicator adopted. Our finding provides supplementary support to the role of the PFC in processing stress.
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| Academic Significance and Societal Importance of the Research Achievements |
This study expands the scope of stress studies by examining how sleep modulates brain’s response to stress during sleep. The findings will inform the development of new interventions for stress-related sleep problems.
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