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Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer
Observational learning has been investigated in monkeys mainly using conspecifics or humans as models to observe. Some studies attempted to clarify the social agent’s role and to test whether non-human primates could learn from observation of a non-social agent, usually mentioned as a ‘ghost display...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344553/ https://www.ncbi.nlm.nih.gov/pubmed/30674953 http://dx.doi.org/10.1038/s41598-018-36803-4 |
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author | Ferrucci, Lorenzo Nougaret, Simon Genovesio, Aldo |
author_facet | Ferrucci, Lorenzo Nougaret, Simon Genovesio, Aldo |
author_sort | Ferrucci, Lorenzo |
collection | PubMed |
description | Observational learning has been investigated in monkeys mainly using conspecifics or humans as models to observe. Some studies attempted to clarify the social agent’s role and to test whether non-human primates could learn from observation of a non-social agent, usually mentioned as a ‘ghost display’ condition, but they reported conflicting results. To address this question, we trained three rhesus monkeys in an object-in-place task consisting of the presentation of five subsequent problems composed of two objects, one rewarded and one unrewarded, for six times, or runs. Three types of learning conditions were tested. In the individual learning condition, the monkeys performed the first run, learned from it and improved their performance in the following runs. In the social and non-social learning conditions, they observed respectively a human model and a computer performing the first run and learned by the observation of their successes or errors. In all three conditions, the monkeys themselves received the reward after correct choices only. One-trial learning occurred in all three conditions. The monkeys performed over chance in the second run in all conditions, providing evidence of non-social observational learning with differential reward in macaque monkeys using a “ghost display” condition in a cognitive task. |
format | Online Article Text |
id | pubmed-6344553 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-63445532019-01-28 Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer Ferrucci, Lorenzo Nougaret, Simon Genovesio, Aldo Sci Rep Article Observational learning has been investigated in monkeys mainly using conspecifics or humans as models to observe. Some studies attempted to clarify the social agent’s role and to test whether non-human primates could learn from observation of a non-social agent, usually mentioned as a ‘ghost display’ condition, but they reported conflicting results. To address this question, we trained three rhesus monkeys in an object-in-place task consisting of the presentation of five subsequent problems composed of two objects, one rewarded and one unrewarded, for six times, or runs. Three types of learning conditions were tested. In the individual learning condition, the monkeys performed the first run, learned from it and improved their performance in the following runs. In the social and non-social learning conditions, they observed respectively a human model and a computer performing the first run and learned by the observation of their successes or errors. In all three conditions, the monkeys themselves received the reward after correct choices only. One-trial learning occurred in all three conditions. The monkeys performed over chance in the second run in all conditions, providing evidence of non-social observational learning with differential reward in macaque monkeys using a “ghost display” condition in a cognitive task. Nature Publishing Group UK 2019-01-23 /pmc/articles/PMC6344553/ /pubmed/30674953 http://dx.doi.org/10.1038/s41598-018-36803-4 Text en © The Author(s) 2019 Open Access 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Ferrucci, Lorenzo Nougaret, Simon Genovesio, Aldo Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title | Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title_full | Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title_fullStr | Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title_full_unstemmed | Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title_short | Macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
title_sort | macaque monkeys learn by observation in the ghost display condition in the object-in-place task with differential reward to the observer |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344553/ https://www.ncbi.nlm.nih.gov/pubmed/30674953 http://dx.doi.org/10.1038/s41598-018-36803-4 |
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