| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
We observed the behavior of human fetuses using ultrasonography, and clarified the relationship between eye movement density, which indicates REM sleep activity, and postnatal development and sleep-wake rhythms. We also used information from the JECS study to analyze the association between maternal physical activity and sleep before and during pregnancy and children diagnosed with autism spectrum disorder (ASD) by the age of 3 years. They found that mothers who were more physically active during pregnancy had a lower risk ratio for ASD in their 3-year-olds. In addition, sleep disturbances during pregnancy tended to increase the risk ratio
In animal studies, the behavior of rat fetuses was observed by ultrasound tomography under unanesthetized conditions. Analyses of homology and neural circuit formation in human and rat development are in progress.
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