Article

A test of the facultative calibration/reactive heritability model of extraversion

Details

Citation

Haysom HJ, Mitchem DG, Lee AJ, Wright MJ, Martin NG, Keller MC & Zietsch BP (2015) A test of the facultative calibration/reactive heritability model of extraversion. Evolution and Human Behavior, 36 (5), pp. 414-419. https://doi.org/10.1016/j.evolhumbehav.2015.03.002

Abstract
A model proposed by Lukaszewski and Roney (2011) suggests that each individual's level of extraversion is calibrated to other traits that predict the success of an extraverted behavioral strategy. Under 'facultative calibration', extraversion is not directly heritable, but rather exhibits heritability through its calibration to directly heritable traits ("reactive heritability"). The current study uses biometrical modeling of 1659 identical and non-identical twins and their siblings to assess whether the genetic variation in extraversion is calibrated to variation in facial attractiveness, intelligence, height in men and body mass index (BMI) in women. Extraversion was significantly positively correlated with facial attractiveness in both males (r = .11) and females (r = .18), but correlations between extraversion and the other variables were not consistent with predictions. Further, twin modeling revealed that the genetic variation in facial attractiveness did not account for a substantial proportion of the variation in extraversion in either males (2.4%) or females (0.5%).

Keywords
Personality; Facultative calibration; Reactive heritability; Behavior genetics; Relative bargaining power

Journal
Evolution and Human Behavior: Volume 36, Issue 5

StatusPublished
FundersDiscovery Early Career Research Award and Australian Research Council
Publication date01/09/2015
Publication date online12/03/2015
Date accepted by journal05/03/2015
URLhttp://hdl.handle.net/1893/28707
PublisherElsevier BV
ISSN1090-5138

People (1)

Dr Anthony Lee

Dr Anthony Lee

Lecturer in Psychology, Psychology