Animal Cognition

, Volume 2, Issue 3, pp 123–129

Is the inversion effect in rhesus monkeys face-specific?

  • L. A. Parr
  • J. T. Winslow
  • W. D. Hopkins
Original Paper

DOI: 10.1007/s100710050032

Cite this article as:
Parr, L., Winslow, J. & Hopkins, W. Anim Cogn (1999) 2: 123. doi:10.1007/s100710050032

Abstract

This study investigated the face inversion effect in rhesus monkeys (Macaca mulatta). Face stimuli consisted of ten black-and-white examples of unfamiliar rhesus monkey faces, brown capuchin faces, and human faces. Two non-face categories included ten examples of automobiles and abstract shapes. All stimuli were presented in a sequential matching-to-sample format using an automated joystick-testing paradigm. Subjects performed significantly better on upright than on inverted presentations of automobiles, rhesus monkey and capuchin faces, but not human faces or abstract shapes. These results are inconsistent with data from humans and chimpanzees that show the inversion effect only for categories of stimuli for which subjects have developed expertise. The inversion effect in rhesus monkeys does not appear to be face-specific, and should therefore not be used as a marker of specialized face processing in this species.

Key words Face recognition Inversion Expertise ¶effect Matching-to-sample  Macaca mulatta 

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • L. A. Parr
    • 1
  • J. T. Winslow
    • 3
  • W. D. Hopkins
    • 5
  1. 1.Living Links, Yerkes Regional Primate Research Center, Atlanta, GA 30329, USA e-mail: parr@rmy.emory.edu, Fax: +1-404-7273270US
  2. 2.Department of Psychology, Emory University, Atlanta, GA 30322, USAUS
  3. 3.Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, GA 30322, USAUS
  4. 4.Division of Neuroscience, Yerkes Regional Primate Research Center, Atlanta, GA 30329, USAUS
  5. 5.Living Links, Yerkes Regional Primate Research Center, Atlanta, GA 30329, USAUS
  6. 6.Department of Psychology, Berry College, Mt. Berry, GA 30149, USAUS

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