| Gravity-dependent animacy perception in zebrafish | |
Xiaohan Ma1,2,3 ; Xiangyong Yuan1,2,3; Jiahuan Liu1,2,3; Li Shen1,2,3; Yiwen Yu1,2,3; Wen Zhou1,2,3; Zuxiang Liu2,4,5; Yi Jiang1,2,3,5
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| 通讯作者 | Liu, Zuxiang(zxliu@ibp.ac.cn) ; Jiang, Yi(yijiang@psych.ac.cn) |
| 2022-07 | |
| 英文摘要 | Biological motion (BM), depicted by a handful of point lights attached to the major joints, conveys rich animacy information, which is significantly disrupted if BM is shown upside down. This well-known inversion effect in BM perception is conserved in terrestrial vertebrates and is presumably a manifestation of an evolutionarily endowed perceptual filter (i.e., life motion detector) tuned to gravity-compatible BM. However, it remains unknown whether aquatic animals, living in a completely different environment from terrestrial animals, perceive BM in a gravity-dependent manner. Here, taking advantage of their typical shoaling behaviors, we used zebrafish as a model animal to examine the ability of teleosts to discriminate between upright (gravity-compatible) and inverted (gravity-incompatible) BM signals. We recorded their swimming trajectories and quantified their preference based on dwelling time and head orientation. The results obtained from three experiments consistently showed that zebrafish spent significantly more time swimming in proximity to and orienting towards the upright BM relative to the inverted BM or other gravity-incompatible point-light stimuli (i.e., the non-BM). More intriguingly, when the recorded point-light video clips of fish were directly compared with those of human walkers and pigeons, we could identify a unique and consistent pattern of accelerating movements in the vertical (gravity) direction. These findings, to our knowledge, demonstrate for the first time the inversion effect in BM perception in simple aquatic vertebrates and suggest that the evolutionary origin of gravity-dependent BM processing may be traced back to ancient aquatic animals. |
| 项目资助者 | Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; Strategic Priority Research Program ; Key Research Program of Frontier Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Science Foundation of the Institute of Psychology, Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities |
| DOI标识 | 10.34133/2022/9829016 |
| 引用统计 | |
| 文献类型 | 实验材料与数据 |
| 条目标识符 | http://ir.psych.ac.cn/handle/311026/42422 |
| 专题 | 认知与发展心理学研究室 |
| 作者单位 | 1.State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China 2.University of Chinese Academy of Sciences, Beijing, 100049, China 3.Chinese Institute for Brain Research, Beijing, 102206, China 4.State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China 5.Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China |
| 推荐引用方式 GB/T 7714 | Xiaohan Ma,Xiangyong Yuan,Jiahuan Liu,et al. Gravity-dependent animacy perception in zebrafish. 2022. |
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