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The evolution and function of adult attachment: a comparative and phylogenetic analysis
R Chris Fraley1, Claudia C Brumbaugh, Michael J Marks
1Department of Psychology, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA. rcfraley@uiuc.edu
Journal of Personality and Social Psychology
|December 15, 2005
Summary
Adult attachment, or pair bonding, in mammals is linked to paternal care and neoteny. Comparative and phylogenetic methods reveal insights into the evolution of social behaviors and pair bonding.
Area of Science:
- Evolutionary biology
- Comparative psychology
- Mammalian behavior
Background:
- Attachment theory extensively studies infant-caregiver bonds.
- The evolutionary role of adult romantic attachment (pair bonding) remains less understood.
- Understanding adult attachment is crucial for social and personality psychology.
Purpose of the Study:
- To investigate the evolutionary origins and functions of adult attachment in mammals.
- To apply comparative and phylogenetic analyses to archival data.
- To explore correlates of pair bonding across diverse mammalian species.
Main Methods:
- Utilized comparative methods across two distinct mammalian samples.
- Employed phylogenetic techniques to reconstruct evolutionary pathways.
- Analyzed archival data on mammalian social structures and reproductive strategies.
Main Results:
- Species with adult attachment were more likely to exhibit paternal care, neoteny, small social groups, and smaller body sizes.
- Phylogenetic analyses indicated a functional relationship (convergent evolution) between paternal care and adult attachment.
- Phylogenetic analyses suggested a homologous relationship (shared ancestry) between neoteny and adult attachment.
Conclusions:
- Comparative and phylogenetic methods offer valuable tools for studying social and personality psychology.
- Adult attachment in mammals is associated with specific ecological and social factors.
- The evolution of pair bonding may involve both convergent and homologous processes.
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