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タイトル: | Age categorization of conspecific and heterospecific faces in capuchin monkeys (Sapajus apella) |
著者: | Kawaguchi, Yuri Kuroshima, Hika Fujita, Kazuo |
著者名の別形: | 川口, ゆり 黒島, 妃香 藤田, 和生 |
キーワード: | capuchin monkey age categorization operant learning baby schema face recognition |
発行日: | 16-May-2019 |
出版者: | American Psychological Association (APA) |
誌名: | Journal of Comparative Psychology |
巻: | 133 |
号: | 4 |
開始ページ: | 502 |
終了ページ: | 511 |
抄録: | Across various species, infant faces share various features referred to as “baby schema”(Lorenz, 1942). Assuming that these features are indeed shared among species, it is possible that nonhuman animals may perceive age information in conspecific and heterospecific faces. We tested whether tufted capuchin monkeys (Sapajus apella) would visually categorize age from faces. In Experiment 1, we trained 4 monkeys to discriminate adult and infant faces of conspecifics using a symbolic matching-to-sample procedure. We then tested whether their categorization transferred to faces of other species (i.e., dogs and humans). In Experiment 2, we trained another 2 monkeys on age categorization of heterospecific (human) faces and tested them with conspecific and dog faces, to assess whether conspecific age categorization in Experiment 1 was specific. In Experiment 3, the 4 monkeys from Experiment 1 were trained with human faces, whereas the 2 monkeys from Experiment 2 were trained with conspecific faces; we then tested all 6 monkeys with faces of dogs and other species including New World monkeys, Old World monkeys, apes, and carnivores. During training, the monkeys quickly learned to categorize adult and infant faces of both conspecifics and humans. However, age categorization failed to transfer to different species in the test phase in all 3 experiments. |
著作権等: | ©American Psychological Association, 2019. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author's permission. The final article is available, upon publication, at: https://doi.org/10.1037/com0000185. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/244806 |
DOI(出版社版): | 10.1037/com0000185 |
PubMed ID: | 31094533 |
出現コレクション: | 学術雑誌掲載論文等 |
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