| 研究課題/領域番号 |
22KF0362
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| 補助金の研究課題番号 |
21F21730 (2021-2022)
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 (2023)
補助金 (2021-2022) |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分44050:動物生理化学、生理学および行動学関連
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| 研究機関 | 沖縄科学技術大学院大学 |
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研究代表者 |
REITER Samuel 沖縄科学技術大学院大学, 計算行動神経科学ユ ニット, 准教授 (60869155)
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| 研究分担者 |
ROUX NATACHA 沖縄科学技術大学院大学, 計算行動神経科学ユ ニット, 外国人特別研究員
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| 研究期間 (年度) |
2023-03-08 – 2024-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
2,200千円 (直接経費: 2,200千円)
2023年度: 600千円 (直接経費: 600千円)
2022年度: 1,100千円 (直接経費: 1,100千円)
2021年度: 500千円 (直接経費: 500千円)
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| キーワード | Visual perception / Camouflage / Cephalopod / Deep learning / Psychophysics |
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| 研究開始時の研究の概要 |
By describing the image statistics used by camouflaging cuttlefish, we seek to understand how visual systems extract summaries of complex visual scenes in general.
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| 研究実績の概要 |
We are continuing to collect cuttlefish images in their natural environment around Okinawa coast and also decided to collect videos in order to investigate the dynamic of camouflage in the field. To complement this video data set and have a higher image resolution, we also conducted video recording experiments in aquarium set up reconstituting naturally like background. We are fitting deep neural networks with these datasets to study high dimensional visual textures within neural network latent spaces. We are also conducting brain surgery experiments to prevent cuttlefish to camouflage in laboratory and better understand the neural control of this complex behavior. Finally, in order to determine the impact of visual environment on camouflage behavior, we exposed cuttlefish embryo to various visual environment and conducted video recording after hatching to assess the effects on camouflage behavior.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Brain surgery experiments are highly challenging, but we are now managing to have better survival rates after surgery allowing us to now proceed to camouflage behavior recording after surgery. The results of such experiment are still uncertain, but we are pleased to have made progress on these risky experiments. Videos of the cuttlefish exposed to various visual environments are currently analyzed using deep learning techniques to understand how visual stimuli can affect cuttlefish body pattern statistics and textures.
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| 今後の研究の推進方策 |
While continuing our fieldwork, we will continue the brain surgery experiments to better understand the role of brain parts on camouflage control and will also test a feedback hypothesis according to which cuttlefish would be able to see their back to adjust their camouflage. Those experiments combine with the visual environment experiment will allow us to better understand how environment image statistics relate to cuttlefish camouflage, how it is controlled and how it is acquired.
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