The Genetics of Sexuality and Aggression (GSA) twin samples in Finland.

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Johansson A, Jern P, Santtila P, von der Pahlen B, Eriksson E, Westberg L, Nyman H, Pensar J, Corander J, Sandnabba N K
Publication year: 2013
Journal: Twin Research and Human Genetics
Journal acronym: Twin Res Hum Genet
Volume number: 16
Issue number: 1
Start page: 150
End page: 156
ISSN: 1832-4274


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:

Last updated on 2020-30-09 at 02:58