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Long-term retention of self-recognition by chimpanzees - PubMed

Long-term retention of self-recognition by chimpanzees

Suzanne Calhoun et al. Am J Primatol. 1988.

Abstract

Two young chimpanzees showed retention of self-recognition after 1 year without access to mirrors. A year earlier the animals were positive on the Gallup dye test. One year later they were once again anesthetized, marked on the brow and ears, and following recovery, exposed individually to a large mirror. Both demonstrated mirror-orientated mark-directed responses. Time-sample observations of behavior toward the mirror further support self-recognition. The chimpanzee's self-awareness, as inferred from its self-recognition, appears to be a stable characteristic of the animal.

Keywords: Pan troglodytes; retention of self‐recognition; self‐concept in chimpanzees.

Copyright © 1988 Wiley‐Liss, Inc., A Wiley Company.

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References

    1. Anderson, J. R. Monkeys with mirrors: Some questions for primate psychology. International Journal of Primatol‐Ogy 5: 81–98, 1984a.
    1. Anderson, J. R. The development of self‐recognition: A review. Developmental Psychobiology 17: 35–49, 1984b.
    1. Calhoun, S. The Question of Contingent Image Self‐Recognition in Apes and Monkeys. Unpublished doctoral dissertation, The Graduate School of the City University of New York, 1983.
    1. Furness, W. H. Observations on the mentality of chimpanzees and orangutans. Proceedings of The American Philosophical Society, Philadelphia 55: 281–290, 1916.
    1. Gallup, G. G., Jr. Chimpanzees: Self‐recognition. Science 167: 86–87, 1970.

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