Population-level right handedness for a coordinated bimanual task in chimpanzees: Replication and extension in a second colony of apes

William D. Hopkins; Michelle Hook; Stephanie Braccini; Steven J. Schapiro

doi:10.1023/A:1023752816951

Population-level right handedness for a coordinated bimanual task in chimpanzees: Replication and extension in a second colony of apes

William D. Hopkins, Michelle Hook, Stephanie Braccini, Steven J. Schapiro

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

The purpose of this study was to evaluate the reliability of previously published findings on hand preferences in chimpanzees by evaluating hand use in a second colony of captive chimpanzees. We assessed hand preferences for a coordinated bimanual task in 116 chimpanzees (Pan troglodytes) at the University of Texas M. D. Anderson Cancer Center and compared them to previously published findings in captive chimpanzees at the Yerkes National Primate Research Center. The new sample showed significant population-level right handedness, which is consistent with previously published findings in the Yerkes chimpanzees. Combined data on the 2 chimpanzee colonies, revealed a significant effect of rearing history on hand preference, with wild-caught chimpanzees showing less right-handedness than captive-born mother-reared chimpanzees. We discuss the results in terms of the role of early environment on the development of laterality.

Original language	English (US)
Pages (from-to)	677-689
Number of pages	13
Journal	International Journal of Primatology
Volume	24
Issue number	3
DOIs	https://doi.org/10.1023/A:1023752816951
State	Published - Jun 2003

Keywords

Chimpanzees
Handedness
Laterality
Rearing effects
Replication

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Animal Science and Zoology

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title = "Population-level right handedness for a coordinated bimanual task in chimpanzees: Replication and extension in a second colony of apes",

abstract = "The purpose of this study was to evaluate the reliability of previously published findings on hand preferences in chimpanzees by evaluating hand use in a second colony of captive chimpanzees. We assessed hand preferences for a coordinated bimanual task in 116 chimpanzees (Pan troglodytes) at the University of Texas M. D. Anderson Cancer Center and compared them to previously published findings in captive chimpanzees at the Yerkes National Primate Research Center. The new sample showed significant population-level right handedness, which is consistent with previously published findings in the Yerkes chimpanzees. Combined data on the 2 chimpanzee colonies, revealed a significant effect of rearing history on hand preference, with wild-caught chimpanzees showing less right-handedness than captive-born mother-reared chimpanzees. We discuss the results in terms of the role of early environment on the development of laterality.",

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note = "Funding Information: This work was supported in part by NIH grants RR-00165, U42-RR-15090, NS-42867, NS-36605 and HD-38051. Correspondence and reprint requests should be addressed to Dr. William Hopkins, Division of Psychobiology, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, Georgia 30322. E-mail: Lrcbh@rmy.emory.edu or whopkins@ berry.edu.",

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doi = "10.1023/A:1023752816951",

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AU - Schapiro, Steven J.

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N2 - The purpose of this study was to evaluate the reliability of previously published findings on hand preferences in chimpanzees by evaluating hand use in a second colony of captive chimpanzees. We assessed hand preferences for a coordinated bimanual task in 116 chimpanzees (Pan troglodytes) at the University of Texas M. D. Anderson Cancer Center and compared them to previously published findings in captive chimpanzees at the Yerkes National Primate Research Center. The new sample showed significant population-level right handedness, which is consistent with previously published findings in the Yerkes chimpanzees. Combined data on the 2 chimpanzee colonies, revealed a significant effect of rearing history on hand preference, with wild-caught chimpanzees showing less right-handedness than captive-born mother-reared chimpanzees. We discuss the results in terms of the role of early environment on the development of laterality.

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Population-level right handedness for a coordinated bimanual task in chimpanzees: Replication and extension in a second colony of apes

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