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タイトル: | No evidence of spatial representation of age, but “own-age bias” like face processing found in chimpanzees |
著者: | Kawaguchi, Yuri Tomonaga, Masaki Adachi, Ikuma |
著者名の別形: | 川口, ゆり 友永, 雅己 足立, 幾磨 |
キーワード: | Age perception Spatial representation Own-age bias Chimpanzee Face recognition |
発行日: | Apr-2022 |
出版者: | Springer Nature |
誌名: | Animal Cognition |
巻: | 25 |
号: | 2 |
開始ページ: | 415 |
終了ページ: | 424 |
抄録: | Previous studies have revealed that non-human primates can differentiate the age category of faces. However, the knowledge about age recognition in non-human primates is very limited and whether non-human primates can process facial age information in a similar way to humans is unknown. As humans have an association between time and space (e.g., a person in an earlier life stage to the left and a person in a later life stage to the right), we investigated whether chimpanzees spatially represent conspecifics’ adult and infant faces. Chimpanzees were tested using an identical matching-to-sample task with conspecific adult and infant face stimuli. Two comparison images were presented vertically (Experiment 1) or horizontally (Experiment 2). We analyzed whether the response time was influenced by the position and age category of the target stimuli, but there was no evidence of correspondence between space and adult/infant faces. Thus, evidence of the spatial representation of the age category was not found. However, we did find that the response time was consistently faster when they discriminated between adult faces than when they discriminated between infant faces in both experiments. This result is in line with a series of human face studies that suggest the existence of an “own-age bias.” As far as we know, this is the first report of asymmetric face processing efficiency between infant and adult faces in non-human primates. |
著作権等: | © The Author(s) 2021 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/275657 |
DOI(出版社版): | 10.1007/s10071-021-01564-7 |
PubMed ID: | 34601661 |
出現コレクション: | 学術雑誌掲載論文等 |
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