| Project/Area Number |
07640906
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
動物生理・代謝
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| Research Institution | Yokohama City University |
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Principal Investigator |
SATOU Masahiko Grad. Sch. Integr. Sci. Yokohama City Univ. Professor, 大学院・総合理学研究科, 教授 (50124673)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | fish / olfaction / olfactory bulb / memory / LTP / コイ / 長期増強 / 可塑性 |
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| Research Abstract |
Dentro-dendritic mitral-to-granule cell synapse in the carp olfactory bulb shows both long-term and short-term plasticity (LTP and STP) after low frequency tetanic stimulation (5-10 Hz, 200 pulses) applied to the olfactory tract (OT) (Anzai et al., 1995 ; anzai and Satou, 1996). As the index of the synaptic transmission OT-evoked field potential (C2 component) was used. In the present study we tested whether or not field potentials with similar plastic property can be evoked also in the olfactory bulb of the salmonid fish (hime salmon, rainbow trout and steelhead trout). As the results we found that (1) C2 component of the field potential was evoked by electrical stimulation applied to the ventral part of the rostral telencephalon and (2) it showed a plastic shange after low frequency tetanic stimulation (8 Hz, 500 pulses).
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