The only problem here is that the studies were based upon preset determinations. When a child is born, the mental capacity is basically survival. Determination of hunger, exhaustion, temperature and pain are the only things a newborn has knowledge of. After that, everything is learned. So the environment with time is what makes a man or woman. And here is no consistency to that so that is where the definition stops. Thus only a newborn can be defined as a group. Adults through their prior information and delivery of it cannot be defined, only generalized. And all that is an inference and not a conclusion. Wonder how much this little wasted effort cost someone?
wy69
Well is the baby a boy or a girl?
An appendage or not would answer the question. "doctor".
Neurobiology / Spring 2017:
“Two minds. The cognitive differences between men and women”
Stanford Medicine Magazine
https://stanmed.stanford.edu/how-mens-and-womens-brains-are-different/
“.. Adjusted for total brain size (men’s are bigger), a woman’s hippocampus, critical to learning and memorization, is larger than a man’s and works differently. Conversely, a man’s amygdala, associated with the experiencing of emotions and the recollection of such experiences, is bigger than a woman’s. It, too, works differently, as Cahill’s research has demonstrated.”
“...But why are men’s and women’s brains different? One big reason is that, for much of their lifetimes, women and men have different fuel additives running through their tanks: the sex-steroid hormones...”
“...Which is not to say every man’s or woman’s brain looks the same. Our multitudinous genetic variations interact with some of our genes’ differential responsiveness to estrogens versus androgens. This complicated pinball game affects goings-on in at least some of the brain’s neural circuits and in whatever little piece of behavior each of these neural circuits manages.”
“...We think gender-specific behavior is a composite of all these modules, which, added up, give you your overall degree of maleness and femaleness,” says Shah.”
“Trying to assign exact percentages to the relative contributions of “culture” versus “biology” to the behavior of free-living human individuals in a complex social environment is tough at best. Halpern offers a succinct assessment: “The role of culture is not zero. The role of biology is not zero.”