Research field (2)：
Animals: biochemistry, physiology, behavioral science
, Neuroanatomy and physiology
Research keywords (6)：
神経回路網の形成機構
, 神経系の起源と進化
, 散在神経系の神経生物学
, Mechanisms of the nerve net formation
, Origin and evolution of neuroactive substances
, Neurobiology of the diffuse nervous system
Research theme for competitive and other funds (6)：
1994 - ヒドラの散在神経系におけるペプチド性神経活性物質の検索
1994 - Screening of peptide neuroactive substances in the nervous system of hydra
1986 - ヒドラの散在神経系における神経網の形成と維持機構
1986 - Formation and maintenance of nerve net of the diffuse nervous system in hydra
1984 - ヒドラの散在神経系における神経細胞の可塑性
1984 - Plasticity of neurons in the nervous system of hydra
KOIZUMI Osamu. Origin and evolution of the nervous system considered from the diffuse nervous system of cnidarians. in “The Cnidaria, past, present and future. The world of Medusa and her sisters”. 2016. 73-91
