Orangutans (Pongo pygmaeus) recognize their own past actions
The ability to recognize oneself in a mirror is known as self-recognition, whereas delayed self-recognition is the ability to recognize the relationship between current self and past actions. While 3-year-old human children have self-recognition without the ability for delayed self-recognition, 4-ye...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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The Royal Society
2018-01-01
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| Series: | Royal Society Open Science |
| Subjects: | |
| Online Access: | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181497 |
| _version_ | 1818998408480817152 |
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| author | Yuki Hanazuka Mika Shimizu Hidemasa Takaoka Akira Midorikawa |
| author_facet | Yuki Hanazuka Mika Shimizu Hidemasa Takaoka Akira Midorikawa |
| author_sort | Yuki Hanazuka |
| collection | DOAJ |
| description | The ability to recognize oneself in a mirror is known as self-recognition, whereas delayed self-recognition is the ability to recognize the relationship between current self and past actions. While 3-year-old human children have self-recognition without the ability for delayed self-recognition, 4-year-old human children demonstrate the capability for both. Chimpanzees, the most closely related species to humans, have displayed the ability for delayed self-recognition. However, little is known about whether this ability is shared among all hominid species. In this study, we examined whether orangutans, the most distantly related species to humans within the hominid group, could recognize their own past actions using the preferential-looking paradigm. Our results demonstrated that orangutans were able to discriminate between a delayed video of themselves presented after a 2-s delay and a recorded video of the day prior. This suggests that orangutans have the ability to relate their own past actions to current actions, although we found no evidence of self-directed behaviour. We believe these findings will contribute to our growing understanding of hominid self-recognition. |
| first_indexed | 2024-12-20T22:01:03Z |
| format | Article |
| id | doaj.art-1e23871f15f143c3a1e3147700668995 |
| institution | Directory Open Access Journal |
| issn | 2054-5703 |
| language | English |
| last_indexed | 2024-12-20T22:01:03Z |
| publishDate | 2018-01-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj.art-1e23871f15f143c3a1e31477006689952022-12-21T19:25:21ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-0151210.1098/rsos.181497181497Orangutans (Pongo pygmaeus) recognize their own past actionsYuki HanazukaMika ShimizuHidemasa TakaokaAkira MidorikawaThe ability to recognize oneself in a mirror is known as self-recognition, whereas delayed self-recognition is the ability to recognize the relationship between current self and past actions. While 3-year-old human children have self-recognition without the ability for delayed self-recognition, 4-year-old human children demonstrate the capability for both. Chimpanzees, the most closely related species to humans, have displayed the ability for delayed self-recognition. However, little is known about whether this ability is shared among all hominid species. In this study, we examined whether orangutans, the most distantly related species to humans within the hominid group, could recognize their own past actions using the preferential-looking paradigm. Our results demonstrated that orangutans were able to discriminate between a delayed video of themselves presented after a 2-s delay and a recorded video of the day prior. This suggests that orangutans have the ability to relate their own past actions to current actions, although we found no evidence of self-directed behaviour. We believe these findings will contribute to our growing understanding of hominid self-recognition.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181497delayed self-recognitionorangutanpreferential-looking paradigm |
| spellingShingle | Yuki Hanazuka Mika Shimizu Hidemasa Takaoka Akira Midorikawa Orangutans (Pongo pygmaeus) recognize their own past actions Royal Society Open Science delayed self-recognition orangutan preferential-looking paradigm |
| title | Orangutans (Pongo pygmaeus) recognize their own past actions |
| title_full | Orangutans (Pongo pygmaeus) recognize their own past actions |
| title_fullStr | Orangutans (Pongo pygmaeus) recognize their own past actions |
| title_full_unstemmed | Orangutans (Pongo pygmaeus) recognize their own past actions |
| title_short | Orangutans (Pongo pygmaeus) recognize their own past actions |
| title_sort | orangutans pongo pygmaeus recognize their own past actions |
| topic | delayed self-recognition orangutan preferential-looking paradigm |
| url | https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181497 |
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