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Related Experiment Videos

Face touching in primates: a closer look.

S D Suarez, G G Gallup

    Neuropsychologia
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Monkeys touch their faces more often than previously thought, challenging earlier findings. Re-analysis suggests no significant difference in hand preference for face touching across primate species.

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    Area of Science:

    • Primate behavior
    • Neuroscience
    • Comparative psychology

    Background:

    • Previous research suggested monkeys rarely touch their faces, unlike great apes and humans.
    • A left-hand preference for face touching was reported in great apes and humans.

    Purpose of the Study:

    • To investigate the incidence of face touching in two macaque species.
    • To re-evaluate species differences in the lateralization of face touching among primates.

    Main Methods:

    • Observational study of two macaque species.
    • Re-analysis of existing data on primate face touching.

    Main Results:

    • Monkeys exhibited a higher incidence of face touching than previously reported.

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  • Re-analysis of data did not support species-specific differences in face touching lateralization.

    • Conclusions:

    • The frequency of face touching in monkeys may be underestimated.
    • Lateralization of face touching does not appear to differ significantly across primate species studied.