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  Chimpanzees form long-term memories for food locations after limited exposure

Mendes, N., & Call, J. (2014). Chimpanzees form long-term memories for food locations after limited exposure. American Journal of Primatology, 76(5), 485-495. doi:10.1002/ajp.22248.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-6755-F Version Permalink: http://hdl.handle.net/21.11116/0000-0003-82F4-6
Genre: Journal Article

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 Creators:
Mendes, Natacha1, 2, Author              
Call, Josep3, Author
Affiliations:
1Department Social Neuroscience, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634552              
2Max Planck Research Group Neuroanatomy and Connectivity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_1356546              
3Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, ou_persistent22              

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Free keywords: long-term memory; limited exposure; retention interval; chimpanzees
 Abstract: Remembering the location of fruiting trees for extended periods of time has been hypothesized to play a major role in the evolution of primate cognition. Such ability would be especially useful when paired with a fast learning mechanism capable of consolidating long-term memory after minimal exposure. We investigated whether chimpanzees (Pan troglodytes) can remember different food locations after minimal exposure (i.e., 1–2 trials) both after 24 hr and after 3-month. We released pairs of chimpanzees in their indoor enclosure (the enclosure of group A measured 430 m2 and group B's measured 175 m2) and tested them for four consecutive days (Baseline, Test, Retest, and Post-test). During the Test and Retest food was hidden in the same location whereas no food was hidden during the Baseline and Post-test days (control trials). Subjects were tested with four different locations and assessed for their retention after 24 hr and 3-month since the initial food discovery. Results revealed that chimpanzees accurately remembered the locations in which they found the food after one or two exposures to them, and both after 24 hr and a 3-month retention interval.

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Language(s): eng - English
 Dates: 20132014-01-312014-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/ajp.22248
PMID: 24482025
Other: Epub 2014
 Degree: -

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Title: American Journal of Primatology
  Other : Am. J. Primatol.
Source Genre: Journal
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Affiliations:
Publ. Info: New York, NY : A.R. Liss
Pages: - Volume / Issue: 76 (5) Sequence Number: - Start / End Page: 485 - 495 Identifier: ISSN: 0275-2565
CoNE: /journals/resource/110985822457224