I ve tried to point out some examples of interactions between these systems. Today we ll focus on these interactions by examining the question of whether endocrine hormones establish differences in the brains or behaviors males and females. In the absence of TDF, an embryo will develop ovaries. Because animals such as zebra finches have brains that are clearly sexually dimorphic, this suggests that the endocrine system and nervous system interact during early life in ways that profoundly influence how the organism will behave later in life. J. Physical Anthrop.
Research sheds some light.
In most cultures of the world male and female children are treated differently from birth. This can range from subtle to dramatic, depending on the individuals and the culture. Clearly we can t perform tests in humans. It is clear from animal studies that endocrine hormones have the potential to influence brain development dramatically. But the correlational studies don t yet seem to provide clearcut answers.