Title

Evolutionary Personality Psychology

Publication Title

Encyclopedia of Human Behavior

Publication Date

2012

Document Type

Book Chapter

DOI

doi.org/10.1016/B978-0-12-375000-6.00390-6

Keywords

Behavioral flexibility, Developmental plasticity, Directional social selection, Disruptive social selection, Evolutionary psychology, Frequency-dependent selection, Genetic diversification, Heritable individual differences, Personality psychology, Theoretical evolutionary ecology

Disciplines

Biological Psychology | Personality and Social Contexts | Psychology | Social Psychology

Abstract

Multiple selective pressures maintain and increase heritable behavioral variability among individuals across both developmental and evolutionary time: (1) directional social selection favors convergent traits, promoting mutually beneficial cooperative interactions; (2) disruptive social selection favors divergent traits, providing release from within-species competition; (3) genetic diversification responds adaptively to the stochastic (random) characteristics of environmental hazards such as uncontrollable morbidity (disease) and mortality (death); (4) developmental plasticity epigenetically directs development adaptively along different alternative pathways, modifying permanent and stable behavioral dispositions to suit long-term contingencies of survival and reproduction; and (5) behavioral flexibility deploys rapid and reversible short-term adaptive behavioral responses to transient situations.

Publisher

Elsevier/Academic Press

Publisher Location

Oxford, England

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