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Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device ALDM Test Systems
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Cognitive capacities for cooking in chimpanzees.

Felix Warneken1, Alexandra G Rosati2

  • 1Department of Psychology, Harvard University, Cambridge, MA, USA warneken@wjh.harvard.edu.

Proceedings. Biological Sciences
|June 5, 2015
PubMed
Summary
This summary is machine-generated.

Chimpanzees demonstrate cognitive skills for cooking, including food preference and planning. These abilities, essential for cooking, may predate human control of fire, suggesting shared ancestry.

Keywords:
causal reasoningcookingfuture-oriented cognitionhuman evolutionprimate cognition

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Area of Science:

  • Cognitive Evolution
  • Primatology
  • Human Ecology

Background:

  • The transition to a cooked diet is a pivotal event in human evolution, requiring advanced cognitive skills.
  • Understanding the cognitive prerequisites for cooking is crucial for tracing human evolutionary history.
  • It remains debated whether these cognitive capacities are uniquely human.

Purpose of the Study:

  • To investigate whether chimpanzees (Pan troglodytes), humans' closest relatives, possess the domain-general cognitive skills necessary for cooking.
  • To explore the evolutionary origins of cooking-related cognition by examining non-human apes.

Main Methods:

  • A series of nine experimental studies were conducted with chimpanzees.
  • Studies assessed chimpanzee preferences for cooked versus raw food.
  • Behavioral assays examined comprehension of cooking's transformative effects, temporal discounting, food transformation willingness, and food transport/saving behaviors.

Main Results:

  • Chimpanzees exhibited a preference for cooked foods over raw foods.
  • They demonstrated an understanding of the causal transformation of food through cooking and generalized this knowledge.
  • Chimpanzees were willing to incur temporal costs and relinquish raw food to obtain cooked food, indicating planning and self-control.

Conclusions:

  • Chimpanzees possess several fundamental psychological abilities required for cooking, including preference, causal reasoning, and anticipatory planning.
  • These cognitive capacities may have been present in the last common ancestor of apes and humans, predating the control of fire.
  • The findings suggest that the cognitive foundations for cooking may not be uniquely human but shared with other great apes.