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Research at St Andrews

Robust retention and transfer of tool construction techniques in chimpanzees (Pan troglodytes)

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

Gill L. Vale, Emma G. Flynn, Lydia Pender, Elizabeth Price, Andrew Whiten, Susan P. Lambeth, Steven J. Schapiro, Rachel L. Kendal

School/Research organisations

Abstract

Long-term memory can be critical to a species' survival in environments with seasonal and even longer-term cycles of resource availability. The present, longitudinal study investigated whether complex tool behaviors used to gain an out-of-reach reward, following a hiatus of about 3 years and 7 months since initial experiences with a tool use task, were retained and subsequently executed more quickly by experienced than by naïve chimpanzees. Ten of the 11 retested chimpanzees displayed impressive long-term procedural memory, creating elongated tools using the same methods employed years previously, either combining 2 tools or extending a single tool. The complex tool behaviors were also transferred to a different task context, showing behavioral flexibility. This represents some of the first evidence for appreciable long-term procedural memory, and improvements in the utility of complex tool manufacture in chimpanzees. Such long-term procedural memory and behavioral flexibility have important implications for the longevity and transmission of behavioral traditions.

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Details

Original languageEnglish
Pages (from-to)24-35
Number of pages12
JournalJournal of Comparative Psychology
Volume130
Issue number1
DOIs
Publication statusPublished - 1 Feb 2016

    Research areas

  • Chimpanzee, Compound tool, Memory, Tool use

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