Work

Aggressive-Antisocial Boys Develop Into Physically Strong Young Men

Year: 2015

Type: article

Abstract: Young men with superior upper-body strength typically show a greater proclivity for physical aggression than their weaker male counterparts. The traditional interpretation of this phenomenon is that young men calibrate their attitudes and behaviors to their physical formidability. Physical strength is thus viewed as a causal antecedent of aggressive behavior. The present study is the first to examine this phenomenon within a developmental framework. We capitalized on the fact that physical strength is a male secondary sex characteristic. In two longitudinal cohorts of children, we estimated adolescent change in upper-body strength using the slope parameter from a latent growth model. We found that males' antisocial tendencies temporally precede their physical formidability. Boys, but not girls, with greater antisocial tendencies in childhood attained larger increases in physical strength between the ages of 11 and 17. These results support sexual selection theory, indicating an adaptive congruence between male-typical behavioral dispositions and subsequent physical masculinization during puberty.

Source: Psychological Science

DOI: 10.1177/0956797614567718

Authors: Joshua D. Isen, Matthew K. McGue, William G. Iacono

Institution: University of Minnesota

Language: English

Topic: Evolutionary Psychology and Human Behavior

Subfield: Experimental and Cognitive Psychology

Field: Psychology

Domain: Social Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Institute on Alcohol Abuse and Alcoholism, National Institute on Drug Abuse