Academic performance of opposite-sex and same-sex twins in adolescence: A Danish national cohort study.

ABSTRACT: Testosterone is an important hormone in the sexual differentiation of the brain, contributing to differences in cognitive abilities between males and females. For instance, studies in clinical populations such as females with congenital adrenal hyperplasia (CAH) who are exposed to high levels of androgens in utero support arguments for prenatal testosterone effects on characteristics such as visuospatial cognition and behaviour. The comparison of opposite-sex (OS) and same-sex (SS) twin pairs can be used to help establish the role of prenatal testosterone. However, although some twin studies confirm a masculinizing effect of a male co-twin regarding for instance perception and cognition it remains unclear whether intra-uterine hormone transfer exists in humans. Our aim was to test the pote

SUBMITTER: Ahrenfeldt L 

PROVIDER: S-EPMC4444512 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature