2012 Fiscal Year Final Research Report
Behavioral and physiological studies on neuronal basis for lateralizedpredation in scale-eating cichlid fish
| Project/Area Number |
23650164
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Neuroscience in general
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| Research Institution | Nagoya University |
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Principal Investigator |
ODA Yoichi 名古屋大学, 理学研究科, 教授 (00144444)
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| Co-Investigator(Kenkyū-buntansha) |
HORI Michio 京都大学, 大学院・理学研究科, 教授 (40112552)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 鱗食魚 / 左右性 / マウスナー細胞 |
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| Research Abstract |
Behavioral lateralization has been documented in many vertebrates,but little has been defined for the neuronal basis of it. Here, we studied scale-eatingbehavior in cichlids in a tank through high-speed video monitoring and quantitative assessmentof behavioral laterality and kinematics. The maximum angular velocity and amplitude of bodyflexion were significantly larger during attacks on the preferred side compared to those onthe nonpreferred side. No such lateralized movement was found in acoustically evoked flexionduring the escape response, which is similar to flexion during scale eating, suggesting thatthe neuronal circuits controlling body flexion during scale eating may be functionallylateralized upstream of the common motor pathway.
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[Presentation] 鱗食性シクリッドが示す左右非対称な捕食行動の獲得過程2013
Author(s)
Yuichi Takeuchi, Michio Hori, YoichiOda
Organizer
The 60thAnnual Meeting of the EcologicalSociety of Japan
Place of Presentation
ShizuokaConvention & Arts Center (Shizuoka)
Year and Date
2013-03-08
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