DHEA/S on the brain and hence less time to integrate attachment and emotional development with sexual behavior.

The final line of investigation involves comparison with our most closely related species, great apes, in order to more fully understand the relationship of adrenarche and gonadarche in reproductive maturation specifically in humans, given their large brains. While adrenarche has been demonstrated in both chimpanzees and gorillas (Smail et al., 1982; Collins et al., 1981), and DHEA/S has not demonstrated a relationship to reproductive behavior (Nadler et al., 1987), we have very little information on the timing and tempo of increases in DHEA/S and its relationship to the development of reproductive behavior. It is only by comparing such patterns from great apes with those from humans that we will be able to understand the contribution of adrenal steroids to a uniquely human reproductive maturation.

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