findings appear consistent with observations of greater densities of androgen receptors in the amygdala versus higher levels of estrogen receptors in the hippocampus, as well as with the preliminary data combining steroid levels and brain volumes, which seem to indicate more sensitivity of the amygdala to testosterone levels and of the hippocampus to estrogen. These areas have also been associated with disorders such as depression and anxiety, disorders which show distinct differences between the sexes (Becker et al., 2007; McEwen, 2001; Romeo, Waters, & Mcewen, 2004).
