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Self-Control in Chimpanzees Relates to General Intelligence.

Michael J Beran1, William D Hopkins2

  • 1Department of Psychology and Language Research Center, Georgia State University, Atlanta, GA 30302, USA.

Current Biology : CB
|February 13, 2018
PubMed
Summary
This summary is machine-generated.

General intelligence in chimpanzees is strongly linked to self-control, specifically their efficiency in delaying gratification. This finding mirrors human intelligence-self-control links and suggests shared cognitive mechanisms.

Keywords:
Pan troglodyteschimpanzeesdelay of gratificationintelligenceself-control

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Area of Science:

  • Comparative cognition
  • Primate behavior
  • Intelligence research

Background:

  • A link exists between general intelligence and self-control in humans.
  • Chimpanzees exhibit both delayed gratification and general intelligence (g).
  • These constructs have not been previously compared within the same chimpanzee sample.

Purpose of the Study:

  • To investigate the relationship between general intelligence (g) and self-control in chimpanzees.
  • To compare inter-temporal choice behavior and cognitive abilities within a single chimpanzee cohort.

Main Methods:

  • Forty chimpanzees completed the hybrid delay task (HDT) for self-control assessment.
  • The primate cognitive test battery (PCTB) was used to measure general intelligence (g).
  • HDT measures inter-temporal choices and sustained delay of gratification capacity.

Main Results:

  • A strong correlation was found between chimpanzee g scores and HDT efficiency.
  • Chimpanzee intelligence was more related to waiting skill than the choice to wait.
  • HDT efficiency correlated with PCTB factors strongly associated with chimpanzee g.

Conclusions:

  • Chimpanzees, like humans, demonstrate a significant relationship between self-control and general intelligence.
  • This link likely involves inhibitory control during cognitive processing and decision-making.
  • Findings suggest conserved cognitive mechanisms for intelligence and self-control across species.