The question of hormonal influences on intellectual development: growth hormone.
Contrary to expectations based on findings of enhanced brain development and learning in rats after prenatal growth-hormone administration, a sample of patients with growth-hormone deficiency of early onset did not show impairment of mental abilities when tested with standard intelligence tests. We conclude from our findings, as well as from other clinical reports, that growth-hormone deficiency of onset does probably not interfere with normal human brain development.
D002675:Child, Preschool; D005260:Female; D013006:Growth Hormone / Q000172:deficiency*; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000209:etiology*; D008297:Male
D013006:Growth Hormone