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第8回宇宙科学シンポジウム (2008年1月8日-9日. 宇宙航空研究開発機構宇宙科学研究本部(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 8ｔh Space Science Symposium (January 8-9, 2008. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan, 著者人数: 35名, 資料番号: SA6000056120, レポート番号: P2-88

第22回宇宙利用シンポジウム(2006年1月17日-19日, 日本学術会議6階会議室 六本木、東京), The Twenty-second Space Utilization Symposium (January 17-19, 2006: Science Council of Japan, Roppongi, Tokyo, Japan), We examined the microgravity effects on the neuronal activities of rat limbic system, using the parabolic flight by airplane. Particulalry, our aim was to find the sensitive part of the limbic system that respond to microgravity by measuring the spontaneous firing of neurons in hippocampus, hypothalamus, dentate gyrus, and amygdala. 4 days before flight, rats underwent surgical operation for implantation of micro-electrodes that were attached with transmitter. The neuronal activities (spontaneous firing) were measured by telemetry and data were stored into PC as digital data. Data recording was conducted throughout the flight. We found that significant increase of spontaneous firing was observed only in the hypothalamus, and not in hippocampus, amygdala, or dentate gyrus. Hypothalamus might be a primarily sensitive site to microgravity., 形態: カラー図版あり, 共催: 日本学術会議, Physical characteristics: Original contains color illustrations, Meeting sponsors: The Science Council of Japan, The Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA), 資料番号: AA0064113082