| Project/Area Number |
24593352
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Lifelong developmental nursing
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| Research Institution | Akita University |
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Principal Investigator |
SHINOHARA Hitomi 秋田大学, 医学(系)研究科(研究院), 教授 (80319996)
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| Co-Investigator(Kenkyū-buntansha) |
KODAMA Hideya 秋田大学, 大学院医学系研究科, 教授 (30195747)
YOSHIDA Michiko 秋田大学, 大学院医学系研究科, 助教 (30463805)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 乳児 / アクチグラフ / ワンチャンネル脳波計 / 睡眠構造 / 育児環境 / 睡眠脳波 / 泣き / 発達 / 睡眠 / 脳波 |
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| Outline of Final Research Achievements |
Objective: To elucidate characteristic sleep structure of different nocturnal sleep patterns in early infancy. Designs: Infants’ nocturnal sleep was monitored simultaneously using actigraphy and one-channel electroencephalography (EEG) at the age of 3-4 months. Each night’s sleep pattern was classified into three categories.
Results: Analysis was conducted during 95 nights in 27 infants. The STN pattern (sleeping through the night，n=36) was characterized by suppressed body movements while EEG represented a state of wakefulness. The weak signal pattern（crying/fuss episodes <10 minutes or fed, n=27) tended to indicate rich and regular distributions of SWS across the night. The strong signal pattern (crying/fuss episodes≧10 minutes)n=32) was characterized by reduced sleep time, although the amount of SWS was not reduced to that degree. Exclusive breastfeeding may increase the proportion of SWS in non-REM sleep.
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