Common Genetic Effects of Gender Atypical Behavior in Childhood and Sexual Orientation in Adulthood: A Study of Finnish Twins
| Autor: | Katarina Witting, Bettina von der Pahlen, Markus Varjonen, Nicole Harlaar, Ada Johansson, Patrik Jern, Pekka Santtila, Katarina Alanko, N. Kenneth Sandnabba |
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| Rok vydání: | 2009 |
| Předmět: |
Adult
Male Population Human sexuality Environment Developmental psychology Arts and Humanities (miscellaneous) Surveys and Questionnaires Twins Dizygotic Humans Gender role Child education Finland General Psychology Behavioural genetics Behavior Sex Characteristics education.field_of_study Twins Monozygotic Childhood gender nonconformity Twin study Phenotype Sexual orientation Female Factor Analysis Statistical Psychology Sexuality Sex characteristics |
| Zdroj: | Archives of Sexual Behavior. 39:81-92 |
| ISSN: | 1573-2800 0004-0002 |
| DOI: | 10.1007/s10508-008-9457-3 |
| Popis: | The existence of genetic effects on gender atypical behavior in childhood and sexual orientation in adulthood and the overlap between these effects were studied in a population-based sample of 3,261 Finnish twins aged 33-43 years. The participants completed items on recalled childhood behavior and on same-sex sexual interest and behavior, which were combined into a childhood gender atypical behavior and a sexual orientation variable, respectively. The phenotypic association between the two variables was stronger for men than for women. Quantitative genetic analyses showed that variation in both childhood gender atypical behavior and adult sexual orientation was partly due to genetics, with the rest being explained by nonshared environmental effects. Bivariate analyses suggested that substantial common genetic and modest common nonshared environmental correlations underlie the co-occurrence of the two variables. The results were discussed in light of previous research and possible implications for theories of gender role development and sexual orientation. |
| Databáze: | OpenAIRE |
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