| Project/Area Number |
23580370
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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 |
Zootechnical science/Grassland science
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| Research Institution | Hiroshima University |
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Principal Investigator |
BUNGO Takashi 広島大学, 生物圏科学研究科, 教授 (40325361)
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| Co-Investigator(Kenkyū-buntansha) |
KAWAKAMI Shinichi 広島大学, 大学院生物圏科学研究科, 准教授 (50343984)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | ニワトリ / 左右差 / モノアミン / 情動 / アニマルウェルフェア |
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| Research Abstract |
The objective of the present study was to investigate the relationship between emotion and hemispheric laterality in chickens. Regarding central monoamine laterality, the ratios of HVA/DA and 5-HIAA/5-HT in the right hemisphere were significantly higher than those in the left hemisphere of chickens on stress conditions. In addition, plasma CORT concentrations correlated positively with the laterality index of 5-HIAA/5-HT in the telencephalon of chickens. It has been suggested that emotional processing in the right hemisphere might be optimal with DAergic and/or serotonergic lateralization, whereas either a decrease or an increase in this lateralization might be reinstated in animals suffering stress. In addition, positive emotion-induced treatment tended to attenuate stressors, but we could not find the relationship between brain asymmetry and behavioral laterality.
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