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The Genetics of Sexuality and Aggression (GSA) Twin Samples in Finland

Journal article
Authors A. Johansson
P. Jern
P. Santtila
B. von der Pahlen
Elias Eriksson
Lars Westberg
H. Nyman
J. Pensar
J. Corander
N. K. Sandnabba
Published in Twin Research and Human Genetics
Volume 16
Issue 1
Pages 150-156
ISSN 1832-4274
Publication year 2013
Published at Institute of Neuroscience and Physiology, Department of Pharmacology
Pages 150-156
Language en
Links dx.doi.org/10.1017/thg.2012.108
Keywords aggression, environmental, genetic, population based, sexuality, twin study, oxtr polymorphisms, population, zygosity, behavior, questionnaire, associations, ejaculation, prevalence, alcohol, bias
Subject categories Pharmacology, Neurosciences

Abstract

The Genetics of Sexuality and Aggression (GSA) project was launched at the Abo Akademi University in Turku, Finland in 2005 and has so far undertaken two major population-based data collections involving twins and siblings of twins. To date, it consists of about 14,000 individuals (including 1,147 informative monozygotic twin pairs, 1,042 informative same-sex dizygotic twin pairs, 741 informative opposite-sex dizygotic twin pairs). Participants have been recruited through the Central Population Registry of Finland and were 18–49 years of age at the time of the data collections. Saliva samples for DNA genotyping (n = 4,278) and testosterone analyses (n = 1,168) were collected in 2006. The primary focus of the data collections has been on sexuality (both sexual functioning and sexual behavior) and aggressive behavior. This paper provides an overview of the data collections as well as an outline of the phenotypes and biological data assembled within the project. A detailed overview of publications can be found at the project's Web site: http://www.cebg.fi/.

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