| Spatial rotations and transpositions in orangutans ( Pongo pygmaeus) and chimpanzees ( Pan troglodytes). | |
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MedLine Citation:
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PMID: 12937996 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study investigated the ability of three chimpanzees and three orangutans to track the position of a reward after a series of displacements. The reward was placed under one of two opaque containers resting on a platform. Experiment 1 investigated rotational displacements in which the platform was rotated 0 degrees, 180 degrees, or 360 degrees. Experiment 2 investigated transpositional displacements in which the platform remained stationary while the containers either remained stationary, or swapped their positions (in a one- two- or three-step sequence). In both experiments, the initial position of the reward was indicated either by directly showing the reward under the containers, or by placing a landmark, which had been previously associated with the reward, on top of the baited container. Subjects successfully tracked the reward through rotations and transpositions when they had seen it, but their performance substantially deteriorated when the landmark indicated the reward's initial position, even though subjects successfully used the landmark to find the reward in the absence of displacements. This decrease was especially pronounced in rotational displacements. A language-trained orangutan outperformed all the other apes and solved all problems. |
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Authors:
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Josep Call |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2003-08-22 |
Journal Detail:
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Title: Primates; journal of primatology Volume: 44 ISSN: 0032-8332 ISO Abbreviation: Primates Publication Date: 2003 Oct |
Date Detail:
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Created Date: 2003-10-31 Completed Date: 2003-12-08 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401152 Medline TA: Primates Country: Japan |
Other Details:
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Languages: eng Pagination: 347-57 Citation Subset: IM |
Affiliation:
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Max-Planck-Institute for Evolutionary Anthropology, Inselstrasse 22, 04103 Leipzig, Germany. call@eva.mpg.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Orientation / physiology* Pan troglodytes / physiology* Pongo pygmaeus / physiology* Rotation Spatial Behavior / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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