Roles and mechanisms of emotional experiences in dreams
| Project/Area Number |
24730622
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Experimental psychology
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| Research Institution | Hiroshima University |
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Principal Investigator |
OGAWA Keiko 広島大学, 総合科学研究科, 准教授 (70546861)
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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 |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | レム睡眠 / 夢見 / 脳波 / 自律神経活動 / 情動体験 / 情動調整 |
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| Outline of Final Research Achievements |
Dreaming often includes emotional experiences. We investigated the roles and mechanisms of emotions in dreams by using brain activities indicated by pre-REM negativity (PRN) and autonomic activities indicated by heart rate. Results indicated that the negative emotional properties of dreams had a significant positive correlation with the PRN amplitude, which is generated by amygdala, as well as with the heart rate. On the other hand, positive emotional properties had a significant negative correlation with PRN amplitude. Moreover, social pain, or negative emotions after social exclusion, increased in the partial REM sleep deprivation group more than in the partial NREM sleep deprivation group after sleep. These findings suggest that amygdala and autonomic activities might induce emotionality in dreams, and that these psychophysiological activities during REM sleep might function to regulate emotions during wakefulness.
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] The supramammillary nucleus and the claustrum activate the cortex during paradoxical (REM) sleep2015
Author(s)
Renouard L., Billwiller F., Ogawa K., Clement O., Camargo N., Abdelkarim M., Gay N., Scote-Blachon C., Toure R., Libourel P.A., Ravassard P., Salvert D., Peyron C., Claustrat B., Leger L., Salin P., Malleret G., Fort P., & Luppi P.H.
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Journal Title
Science Advances
Volume: 1(3)
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