Potential for homosexual response is prevalent and genetic

Pekka Santtila; N Kenneth Sandnabba; Nicole Harlaar; Markus Varjonen; Katarina Alanko; Bettina von der Pahlen

doi:10.1016/j.biopsycho.2007.08.006

Potential for homosexual response is prevalent and genetic

Biol Psychol. 2008 Jan;77(1):102-5. doi: 10.1016/j.biopsycho.2007.08.006. Epub 2007 Aug 30.

Authors

Pekka Santtila¹, N Kenneth Sandnabba, Nicole Harlaar, Markus Varjonen, Katarina Alanko, Bettina von der Pahlen

Affiliation

¹ Center of Excellence in Behavior Genetics, Department of Psychology, Abo Akademi University, 20500 Turku, Finland. pekka.santtila@abo.fi

PMID: 17904267
DOI: 10.1016/j.biopsycho.2007.08.006

Abstract

We investigated the potential to engage in homosexual behavior in 6001 female and 3152 male twins and their siblings finding that 32.8% of the men and 65.4% of the women reported such potential (p<0.001). 91.5% of these men and 98.3% of these women reported no overt homosexual behavior during the preceding 12 months. The potential to engage in homosexual behavior was influenced by genetic effects for both men (37.4%) and women (46.4%) and these overlapped only partly with those for overt homosexual behavior.

Publication types

Research Support, Non-U.S. Gov't
Twin Study

MeSH terms

Adolescent
Adult
Aggression / physiology
Female
Genetics
Homosexuality / physiology*
Homosexuality / psychology*
Homosexuality / statistics & numerical data
Humans
Likelihood Functions
Male
Phenotype
Self-Assessment
Sexual Behavior / psychology
Social Environment