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Production and Comprehension of Gestures between Orang-Utans (Pongo pygmaeus) in a Referential Communication Game

Moore, Richard ; Call, Josep ; Tomasello, Michael Kaminski, Juliane

PloS one, 2015-06, Vol.10 (6), p.e0129726-e0129726 [Periódico revisado por pares]

United States: Public Library of Science

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  • Título:
    Production and Comprehension of Gestures between Orang-Utans (Pongo pygmaeus) in a Referential Communication Game
  • Autor: Moore, Richard ; Call, Josep ; Tomasello, Michael
  • Kaminski, Juliane
  • Assuntos: Animal behavior ; Animal Communication ; Animals ; Apes ; Cognitive ability ; Communication ; Female ; Food ; Gestures ; Language ; Male ; Monkeys & apes ; Orangutan ; Orangutans ; Phylogeny ; Pongo pygmaeus ; Psychology
  • É parte de: PloS one, 2015-06, Vol.10 (6), p.e0129726-e0129726
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Competing Interests: The authors have declared that no competing interests exist.
    Conceived and designed the experiments: RM JC MT. Performed the experiments: RM. Analyzed the data: RM. Wrote the paper: RM JC MT.
  • Descrição: Orang-utans played a communication game in two studies testing their ability to produce and comprehend requestive pointing. While the 'communicator' could see but not obtain hidden food, the 'donor' could release the food to the communicator, but could not see its location for herself. They could coordinate successfully if the communicator pointed to the food, and if the donor comprehended his communicative goal and responded pro-socially. In Study 1, one orang-utan pointed regularly and accurately for peers. However, they responded only rarely. In Study 2, a human experimenter played the communicator's role in three conditions, testing the apes' comprehension of points of different heights and different degrees of ostension. There was no effect of condition. However, across conditions one donor performed well individually, and as a group orang-utans' comprehension performance tended towards significance. We explain this on the grounds that comprehension required inferences that they found difficult - but not impossible. The finding has valuable implications for our thinking about the development of pointing in phylogeny.
  • Editor: United States: Public Library of Science
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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