Neuroscience of sex differences
Testosterone and the male brain
#### Testosterone and the male brain

The gonadal hormone testosterone is an androgenic, or masculinizing, hormone that is synthesized in both the male testes and female ovaries, at a rate of about 14,000 μg/day and 600 μg/day, respectively. Testosterone exerts organizational effects on the developing brain, many of which are mediated through [estrogen receptors](/wiki/Estrogen_receptor "Estrogen receptor") following its conversion to estrogen by the enzyme [aromatase](/wiki/Aromatase "Aromatase") within the brain.


What effects does testosterone have on the developing brain?