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The repeatability of cognitive performance: a meta-analysis.

M Cauchoix1,2, P K Y Chow3,4, J O van Horik3

  • 1Station d'Ecologie Théorique et Expérimentale du CNRS UMR5321, Evolutionary Ecology Group, 2 route du CNRS, 09200 Moulis, France mcauchoixxx@gmail.com.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|August 15, 2018
PubMed
Summary
This summary is machine-generated.

Cognitive performance is repeatable across many animal species, similar to behavior. This consistency in individual cognition across different tasks and times suggests it may influence fitness outcomes.

Keywords:
attentioncognitive repeatabilityevolutionary biology of cognitionindividual differenceslearningmemory

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Area of Science:

  • Evolutionary biology
  • Animal cognition
  • Behavioral ecology

Background:

  • Individual differences in behavior are well-documented.
  • Repeatability of cognitive performance across species is less understood.
  • Understanding cognitive repeatability is crucial for evolutionary studies.

Purpose of the Study:

  • To meta-analyze the repeatability of cognitive performance across diverse taxa.
  • To assess both temporal and contextual repeatability of cognitive abilities.
  • To identify factors influencing cognitive repeatability.

Main Methods:

  • Conducted a meta-analysis of 44 studies involving 25 species.
  • Compared repeatability of performance on the same task over time (temporal) and across different tasks (contextual).
  • Investigated the influence of seven moderators on repeatability estimates.

Main Results:

  • Found significant support for both temporal and contextual repeatability of cognitive performance.
  • Mean repeatability (R) estimates ranged from 0.15 to 0.28.
  • Repeatability was primarily influenced by the type of cognitive measure and publication status.

Conclusions:

  • Consistent inter-individual variation in cognition is widespread across taxa.
  • Cognitive repeatability, like behavioral repeatability, may be linked to fitness.
  • This study provides a foundation for understanding the evolution of cognitive differences.