| 研究課題/領域番号 |
21K20616
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| 研究機関 | 京都大学 |
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研究代表者 |
WILSON DUNCAN 京都大学, 文学研究科, 講師 (20828925)
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| 研究期間 (年度) |
2021-08-30 – 2023-03-31
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| キーワード | geometric morphometrics / facial expression / pain / behaviour / common marmoset |
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| 研究実績の概要 |
This study aims to quantify changes in facial expression in common marmosets in relation to a routine painful procedure (laparotomy), and validate these changes against traditional pain-related behaviours. Video footage was taken for 1 hour pre- and post-surgery (pre- and post-analgesia) and the frequency of pain-related behaviours used to score pain intensity at each time point. Demonstrating significant differences in facial coordinates in relation to pain intensity is expected to lead to increased precision in identifying the onset of pain-related facial expressions. In FY2021, preliminary results indicated a decrease in movement and feeding behaviours, and an increase in self-grooming and wound-licking behaviours post-surgery. In addition, significant face shape variation between pre- and post-surgery was found. However, further analysis is needed to draw more concrete conclusions about whether facial expressions of pain in common marmosets can be identified using a geometric morphometric approach.
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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
In FY2021, our paper entitled: ‘CalliFACS: The Common Marmoset Facial Action Coding System’ was accepted for publication in PLoS ONE. This manual is a new tool which enables users to objectively code facial movements (Action Units) specific to common marmosets. The ‘CalliFACS’ was used for the current project to establish 48 landmarks on the faces of common marmosets. At the start of this project, we had already collected video data from 18 animals. This year, we collected video data from eight more animals (24 animals in total). Two Research Assistants were hired to assist with extracting and annotating facial images, and to code pain-related behaviours using software. Preliminary results indicated a decrease in movement and feeding behaviours, and an increase in self-grooming and wound-licking behaviours post-surgery. In addition, significant face shape variation between pre- and post-surgery was found. However, further analysis is needed to draw more concrete conclusions about whether facial expressions of pain in common marmosets can be identified using a geometric morphometric approach. Overall, the research is progressing as planned.
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| 今後の研究の推進方策 |
In FY2022, the main focus of the project will be to complete the statistical analysis, prepare and submit a manuscript for publication, and disseminate the results domestically and internationally. The preliminary results will be presented at the ‘Universities Federation for Animal Welfare International Conference’ (Edinburgh, UK) in June 2022, and the full results will be presented at the ‘Japan Society for Marmoset Research Annual Conference’ in January 2023. Future research promotion involves working more on the automation of facial expressions of pain using AI. I am working on this issue with colleagues at the Center for the Evolutionary Origins of Human Behaviour at Kyoto University, Newcastle University, UK, and the Centre for Macaques, Medical Research Council Harwell, UK. We aim to submit a UK grant proposal for research on automated marmoset and macaque welfare assessment this year.
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| 次年度使用額が生じた理由 |
２０２１年度コロナウイルスの影響で海外の学会に参加することができなかったので予算が余ったが、２０２２年度は海外の学会に参加するための旅費として使用する。
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