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Differing views: Can chimpanzees do Level 2 perspective-taking?

Katja Karg1, Martin Schmelz2, Josep Call2,3

  • 1Department of Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. katja_karg@eva.mpg.de.

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Summary
This summary is machine-generated.

Chimpanzees do not understand mistaken perspectives. Unlike children, they attribute their own preferences to others, failing to predict actions based on differing viewpoints.

Keywords:
Appearance–realityChimpanzeeDeceptionFalse beliefPerspective-taking

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Area of Science:

  • Cognitive Science
  • Primate Behavior
  • Developmental Psychology

Background:

  • Understanding others' perspectives is crucial for social cognition.
  • Previous research suggests chimpanzees grasp what others see, but not how they see it (Level 2 perspective-taking).

Purpose of the Study:

  • To investigate if chimpanzees can predict conspecific behavior based on a mistaken perspective.
  • To differentiate between attributing one's own preference and true perspective-taking in chimpanzees.

Main Methods:

  • A competitive food stick task where one individual had a different visual perspective.
  • Comparison of chimpanzee and child behavior in a social game versus a non-social control.
  • A follow-up experiment with chimpanzees in a control condition without preference.

Main Results:

  • Chimpanzees and children initially chose the 'riskier' stick less in the social game than in the control.
  • Children demonstrated Level 2 perspective-taking by choosing randomly in the control.
  • Chimpanzees' initial game choice suggested attributing their own preference, not understanding the other's view.

Conclusions:

  • Chimpanzees initially solved the task by projecting their own preferences onto the competitor.
  • Children exhibited genuine Level 2 perspective-taking skills.
  • Follow-up results confirmed chimpanzees' reliance on self-projection rather than true perspective-taking.