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Related Experiment Videos

Development, microevolution, and social behavior.

R B Cairns1, J L Gariépy, K E Hood

  • 1Department of Psychology, University of North Carolina, Chapel Hill 27599-3270.

Psychological Review
|January 1, 1990
PubMed
Summary

Social development hinges on gene-environment interactions. This study proposes that developmental and microevolutionary changes often collaborate, allowing rapid adaptation through modified developmental timing, particularly in aggressive behaviors.

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Area of Science:

  • Developmental psychology
  • Evolutionary biology
  • Behavioral genetics

Background:

  • Social development involves understanding genetic and ontogenetic influences on behavior.
  • Key questions range from infant attachment to aggression plasticity.

Purpose of the Study:

  • To propose a framework for understanding social adaptation through the interplay of developmental and microevolutionary processes.
  • To investigate how social behavior patterns are modified during development and across generations.

Main Methods:

  • The study proposes a theoretical model integrating genetic, developmental, and microevolutionary factors.
  • Empirical evidence from aggressive interactions is used for illustration.

Main Results:

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  • Developmental, experiential, and microevolutionary processes often collaborate in social adaptation.
  • Social behaviors are generally stable but possess vulnerabilities for rapid, reversible changes in ontogeny and microevolution.
  • Altering the developmental timing of behavioral features significantly impacts adaptive configurations.
  • Features rapidly changeable in ontogeny are also susceptible to rapid microevolutionary change.

Conclusions:

  • Social behaviors exhibit dual genesis, with developmental and microevolutionary pathways contributing to coincident adaptation.
  • Understanding the plasticity of social behavior requires considering both ontogenetic and microevolutionary dynamics.