What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior
Many recent comparative studies have addressed “episodic” memory in nonhuman animals, suggesting that birds, rodents, great apes, and others can remember their own behavior after at least a half-day delay. By contrast, despite numerous studies regarding long-term memory, few comparable studies have...
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| Format: | Article |
| Language: | English |
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PeerJ Inc.
2014-10-01
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| Series: | PeerJ |
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| Online Access: | https://peerj.com/articles/637.pdf |
| _version_ | 1797418247445807104 |
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| author | Masaki Tomonaga Takaaki Kaneko |
| author_facet | Masaki Tomonaga Takaaki Kaneko |
| author_sort | Masaki Tomonaga |
| collection | DOAJ |
| description | Many recent comparative studies have addressed “episodic” memory in nonhuman animals, suggesting that birds, rodents, great apes, and others can remember their own behavior after at least a half-day delay. By contrast, despite numerous studies regarding long-term memory, few comparable studies have been conducted on short-term retention for own behavior. In the current study, we addressed the following question: Do chimpanzees remember what they have just done? Four chimpanzees performed matching-to-sample and visual search tasks on a routine basis and were occasionally (every four sessions) given a “recognition” test immediately after their response during visual search trials. Even though these test trials were given very rarely, all four chimpanzees chose the stimulus they selected in the visual search trials immediately before the test trial significantly more frequently than they chose the stimulus they selected in another distractor trial. Subsequent experiments ruled out the possibility that preferences for the specific stimuli accounted for the recognition test results. Thus, chimpanzees remembered their own behavior even within a short-term interval. This type of memory may involve the transfer of episodic information from working memory to long-term episodic-like memory (i.e., an episodic buffer). |
| first_indexed | 2024-03-09T06:30:56Z |
| format | Article |
| id | doaj.art-5164b482c77d4bd98507fc386db12d1d |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:30:56Z |
| publishDate | 2014-10-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-5164b482c77d4bd98507fc386db12d1d2023-12-03T11:05:56ZengPeerJ Inc.PeerJ2167-83592014-10-012e63710.7717/peerj.637637What did you choose just now? Chimpanzees’ short-term retention of memories of their own behaviorMasaki Tomonaga0Takaaki Kaneko1Primate Research Institute, Kyoto University, Kanrin, Inuyama, Aichi, JapanRIKEN Brain Science Institute, Wako, Saitama, JapanMany recent comparative studies have addressed “episodic” memory in nonhuman animals, suggesting that birds, rodents, great apes, and others can remember their own behavior after at least a half-day delay. By contrast, despite numerous studies regarding long-term memory, few comparable studies have been conducted on short-term retention for own behavior. In the current study, we addressed the following question: Do chimpanzees remember what they have just done? Four chimpanzees performed matching-to-sample and visual search tasks on a routine basis and were occasionally (every four sessions) given a “recognition” test immediately after their response during visual search trials. Even though these test trials were given very rarely, all four chimpanzees chose the stimulus they selected in the visual search trials immediately before the test trial significantly more frequently than they chose the stimulus they selected in another distractor trial. Subsequent experiments ruled out the possibility that preferences for the specific stimuli accounted for the recognition test results. Thus, chimpanzees remembered their own behavior even within a short-term interval. This type of memory may involve the transfer of episodic information from working memory to long-term episodic-like memory (i.e., an episodic buffer).https://peerj.com/articles/637.pdfChimpanzeesEpisodic-like memoryMatching to sampleVisual searchShort-term memory |
| spellingShingle | Masaki Tomonaga Takaaki Kaneko What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior PeerJ Chimpanzees Episodic-like memory Matching to sample Visual search Short-term memory |
| title | What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior |
| title_full | What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior |
| title_fullStr | What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior |
| title_full_unstemmed | What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior |
| title_short | What did you choose just now? Chimpanzees’ short-term retention of memories of their own behavior |
| title_sort | what did you choose just now chimpanzees short term retention of memories of their own behavior |
| topic | Chimpanzees Episodic-like memory Matching to sample Visual search Short-term memory |
| url | https://peerj.com/articles/637.pdf |
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