Research field (1)：
Animals: biochemistry, physiology, behavioral science
Research theme for competitive and other funds (14)：
2022 - 2027 昆虫ナビゲーションにおける偏光コンパスの概日時計に基づく時間補償機構
2022 - 2026 ミツバチのベクトル統合の神経回路と蜜源ナビゲーションにおける制御機構の解明
2022 - 2025 ミツバチのナビゲーション行動を成熟させる神経メカニズムの解明
2021 - 2024 Error avoidance strategy of Platypus quercivorus on their host selection process
2019 - 2023 ミツバチのナビゲーションにおける方向と距離の情報統合の脳内メカニズム
2018 - 2022 Mechanism for detecting the azimuth encoded in the honeybee waggle dance
2018 - 2021 Identification of primary attractants for Platypus quercivorus and their application to the control of Japanese oak wilt
2016 - 2019 Neural mechanism of the time compensation for the detection of a navigating direction using the polarized light in the honeybee
2015 - 2018 Dinamical neuronal modeling of insect navigation based on polarization vision
2013 - 2016 Brain mechanism
2013 - 2016 Behavioral and electrophysiological study of insect polarization vision by simultaneous recording of polarotactic behavior and brain neural activities.
2012 - 2015 Effect of social behaviour on carbon budget of honeybee colony under climate change
2010 - 2012 Neural mechanisms of motivation-dependent learning and memory
2008 - 2009 社会性適応のための行動変容機構の研究
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Papers (53)：
Tappei Mishina, Ming-Chung Chiu, Yasuyuki Hashiguchi, Sayumi Oishi, Atsunari Sasaki, Ryuichi Okada, Hironobu Uchiyama, Takeshi Sasaki, Midori Sakura, Hirohiko Takeshima, et al. Massive horizontal gene transfer and the evolution of nematomorph-driven behavioral manipulation of mantids. Current Biology. 2023. 33. 22. 4988-4994.e5
Ryuichi Okada, Hidetoshi Ikeno, Hitoshi Aonuma, Midori Sakura, Etsuro Ito. Honey Bee Waggle Dance as a Model of Swarm Intelligence. Journal of Robotics and Mechatronics. 2023
Norihiro Kobayashi, Yuji Hasegawa, Ryuichi Okada, Midori Sakura. Visual learning in tethered bees modifies flight orientation and is impaired by epinastine. Journal of Comparative Physiology A. 2023
Nobuaki Matsubara, Ryuichi Okada, Midori Sakura. Possible Role of Polarized Light Information in Spatial Recognition in the Cricket Gryllus bimaculatus. Zoological science. 2021. 38. 4. 297-304
Fujihara Seima, Ito Yasuto, Pham Duy Long, Okada Ryuichi, Yamasaki Michimasa, Ikeno Hidetoshi. Relationship between the flight distance of ambrosia beetle, Platypus quercivorus and environmental factors. The Japanese Forest Society Congress. 2021. 132. 140
山崎理正, PHAM Duy Long, 伊東康人, 岡田龍一, 池野英利. Causes of high variation in flight distance of the ambrosia beetle Platypus quercivorus. 日本生態学会大会講演要旨(Web). 2021. 68th
