Читать книгу Handbook of Clinical Gender Medicine - Группа авторов - Страница 47

Baron-Cohen et al. [7] discussed a number of amniocentesis-based correlational studies, which indicate a positive correlation between the mental rotation rate and fetal testosterone and an inverse relation between fetal testosterone levels and language comprehension. The authors used stored samples of amniotic fluid and performed longitudinal studies in these ‘amniocentized children’ over 48 months after delivery. At 12 months of life they correlated fetal testosterone (fT) and the ability to make eye contact as a marker for social development in 71 children. Girls made significantly more eye contact than did boys. Eye contact decreased with increasing levels of fT. The authors further examined language development between 18 and 24 months of age in 87 toddlers and found that girls had a significantly higher vocabulary size than did boys and that there was a significantly inverse relationship between fT and vocabulary size for the children as a group but not within either sex group.