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The Androgen Receptor Gene and Psychological Traits: Are Results Consistent in Sweden and Australia?

Published online by Cambridge University Press:  21 February 2012

John C. Loehlin ,
Erik G. Jönsson ,
J. Petter Gustavsson ,
Martin Schalling  and
Michael C. Stallings
John C. Loehlin*
Affiliation:
Department of Psychology, University of Texas, Austin,TX, USA. [email protected]
Erik G. Jönsson
Affiliation:
HUBIN project, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
J. Petter Gustavsson
Affiliation:
Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
Martin Schalling
Affiliation:
Department of Molecular Medicine, Neurogenetics Unit, Karolinska Institute, Stockholm, Sweden.
Michael C. Stallings
Affiliation:
Department of Psychology, University of Colorado, Boulder, CO, USA.
*
*Address for correspondence: J. C. Loehlin, Department of Psychology, University of Texas, Austin, TX, USA.

Abstract

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Studies in Sweden and Australia have examined the relationship between number of CAG repeats in the androgen receptor gene and psychological traits — three Masculinity-Femininity (M-F) measures in Australia, and the Karolinska Scales of Personality (KSP) in Sweden. The present study derived M-F scales from the KSP items, and scales corresponding to several KSP scales from the items of the inventories used in Australia, to permit cross-validation of the Australian results in the Swedish sample, and vice versa. The derivation of scales was facilitated by the fact that items from both inventories had been used with a large twin sample in the US. Correlation of the derived scales with androgen receptor gene CAG-repeat scores for women in the Australian and Swedish samples failed to provide clear evidence of replication of either set of original correlations in the other sample, although there were a few hints of consistency. It was concluded that if the number of CAG repeats on this gene is related to psychological traits at all, the relationship is a weak one.

Type
Articles
Information
Twin Research and Human Genetics , Volume 6 , Issue 3 , 01 June 2003 , pp. 201 - 208
Copyright
Copyright © Cambridge University Press 2003